ICSE Class 10 Physics Important Topics 2027

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Every topic ranked by how often and how recently it was asked in 4 board + 5 official sample papers (2023–2027). Teal tags = board papers, orange tags = official sample papers.

Top 10 most important topics

#TopicChapterAsked inImportance
1liquid-state region of a cooling curveCalorimetry and Latent HeatSample 2023Sample 2024Sample 2025Sample 2026Sample 2027★★★★★
2pitch depends on frequencySoundSample 2024Sample 2025Sample 2026Sample 2027★★★★☆
3old colour code of the earth wireCurrent Electricity and Household CircuitsSample 2024Sample 2025Sample 2026Sample 2027★★★★☆
4latent heat of fusionCalorimetry and Latent HeatSample 2024Sample 2025Sample 2026Sample 2027★★★★☆
5total internal reflection in optical fibresRefraction of Light and LensesSample 2024Sample 2025Sample 2026Sample 2027★★★★☆
6a lens of two refractive indices forms two imagesRefraction of Light and LensesSample 2024Sample 2025Sample 2026Sample 2027★★★★☆
7concave lens forms virtual erect diminished imagesRefraction of Light and LensesSample 2024Sample 2025Sample 2026Sample 2027★★★★☆
8condensation point from a cooling curveCalorimetry and Latent HeatSample 2024Sample 2025Sample 2026Sample 2027★★★★☆
9centre of gravity displaced from geometric centreForce, Turning Effect and EquilibriumBoard 2023Sample 2025Sample 2026Sample 2027★★★★☆
10echo distance from time and speedSoundSample 2023Sample 2024Sample 2025Sample 2026★★★★☆

Chapter-wise important topics

Force, Turning Effect and Equilibrium · Force, Work, Power and Energy
centre of gravity displaced from geometric centre
asked 4×
Board 2023Sample 2025Sample 2026Sample 2027★★★★☆
balance point shifts towards heavier region
asked 3×
Sample 2025Sample 2026Sample 2027★★★☆☆
sign convention of moment of couple
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
centre of gravity shifts towards added mass
asked 2×
Sample 2026Sample 2027★★☆☆☆
centre of gravity shifts when part is removed
asked 2×
Sample 2026Sample 2027★★☆☆☆
friction provides centripetal force in circular motion
asked 2×
Board 2026Sample 2027★★☆☆☆
moment depends on force and perpendicular distance
asked 2×
Sample 2023Sample 2027★★☆☆☆
moment = force x perpendicular distance
asked 3×
Board 2023Board 2024Sample 2023★★☆☆☆
centre of gravity shifts towards the heavier part
asked 1×
Sample 2024★☆☆☆☆
centre of gravity nearer the heavier region
asked 1×
Sample 2024★☆☆☆☆
principle of moments and perpendicular distance
asked 1×
Sample 2024★☆☆☆☆
principle of moments equation
asked 1×
Sample 2024★☆☆☆☆
condition for dynamic equilibrium
asked 1×
Board 2026★☆☆☆☆
factors affecting position of centre of gravity
asked 1×
Board 2026★☆☆☆☆
sign convention of moments
asked 1×
Board 2026★☆☆☆☆
condition for rotational equilibrium
asked 1×
Board 2026★☆☆☆☆
balancing of clockwise and anticlockwise moments
asked 1×
Board 2026★☆☆☆☆
SI unit of moment of force
asked 1×
Sample 2023★☆☆☆☆
factors affecting centre of gravity
asked 1×
Sample 2023★☆☆☆☆
moment about different points using perpendicular distance
asked 1×
Sample 2023★☆☆☆☆
moment of a force about the wheel centre
asked 1×
Sample 2023★☆☆☆☆
comparing moments for rotation
asked 1×
Sample 2023★☆☆☆☆
net moment causes the observed rotation
asked 1×
Sample 2023★☆☆☆☆
couple produces rotational motion
asked 1×
Board 2025★☆☆☆☆
moment of couple is a vector
asked 1×
Board 2025★☆☆☆☆
direction of centrifugal force in circular motion
asked 1×
Board 2025★☆☆☆☆
centre of gravity lies below the point of suspension
asked 1×
Board 2025★☆☆☆☆
centre of gravity vertically below suspension point
asked 1×
Board 2025★☆☆☆☆
principle of moments with weight of a uniform scale
asked 1×
Board 2025★☆☆☆☆
centripetal force in circular motion
asked 1×
Board 2024★☆☆☆☆
zero work done by centripetal force
asked 1×
Board 2024★☆☆☆☆
principle of moments for equilibrium
asked 1×
Board 2024★☆☆☆☆
definition of centre of gravity
asked 1×
Board 2024★☆☆☆☆
position of centre of gravity of a cone and effect of filling
asked 1×
Board 2024★☆☆☆☆
sign convention of clockwise moment
asked 1×
Board 2023★☆☆☆☆
centre of gravity of a triangular lamina
asked 1×
Board 2023★☆☆☆☆
moment of weight about point of suspension at rest
asked 1×
Board 2023★☆☆☆☆
moment depends on perpendicular distance
asked 1×
Board 2023★☆☆☆☆
principle of moments to balance a non-uniform scale
asked 1×
Board 2023★☆☆☆☆
Work, Energy, Power and Machines · Force, Work, Power and Energy
zero work when displacement is perpendicular to gravity
asked 3×
Sample 2025Sample 2026Sample 2027★★★☆☆
negative work by gravity when moving up
asked 3×
Sample 2025Sample 2026Sample 2027★★★☆☆
positive work by gravity when moving down
asked 3×
Sample 2025Sample 2026Sample 2027★★★☆☆
kinetic energy calculation
asked 3×
Board 2025Sample 2027★★★☆☆
conservation of mechanical energy
asked 4×
Board 2026Sample 2023Sample 2024Sample 2025★★★☆☆
gravitational potential energy
asked 4×
Board 2026Sample 2023Sample 2024Sample 2025★★★☆☆
kinetic energy depends on momentum
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
block and tackle pulley system of a given velocity ratio
asked 3×
Board 2025Sample 2025Sample 2026★★★☆☆
class of lever for nodding head
asked 2×
Sample 2026Sample 2027★★☆☆☆
class of lever for standing on toes
asked 2×
Sample 2026Sample 2027★★☆☆☆
class II lever always has mechanical advantage greater than 1
asked 2×
Sample 2025Sample 2026★★☆☆☆
gravitational potential energy of a lifted load
asked 2×
Sample 2025Sample 2026★★☆☆☆
energy transformation in photosynthesis
asked 2×
Board 2026Sample 2027★★☆☆☆
classes of levers
asked 3×
Board 2024Sample 2024★★☆☆☆
energy conversion in a thermoelectric station
asked 2×
Sample 2024Sample 2025★★☆☆☆
potential energy proportional to height
asked 2×
Sample 2024Sample 2025★★☆☆☆
speed from conservation of energy
asked 2×
Sample 2024Sample 2025★★☆☆☆
mechanical advantage from efficiency and velocity ratio
asked 2×
Sample 2023Sample 2024★★☆☆☆
potential energy relates mass and height
asked 1×
Sample 2027★☆☆☆☆
velocity ratio of a block and tackle system
asked 1×
Sample 2027★☆☆☆☆
work-energy theorem relates force and distance
asked 1×
Sample 2027★☆☆☆☆
work-energy theorem
asked 1×
Sample 2027★☆☆☆☆
greatest mechanical advantage with longest effort arm and shortest load arm
asked 1×
Sample 2027★☆☆☆☆
mechanical advantage as ratio of effort arm to load arm
asked 1×
Sample 2027★☆☆☆☆
identifying class of lever from fulcrum position
asked 1×
Sample 2027★☆☆☆☆
energy conversion sequence in a thermoelectric plant
asked 1×
Sample 2026★☆☆☆☆
effect of lubrication on efficiency and velocity ratio
asked 1×
Sample 2026★☆☆☆☆
gravitational potential energy relative to lowest point
asked 1×
Sample 2026★☆☆☆☆
speed at the lowest point from energy conservation
asked 1×
Sample 2026★☆☆☆☆
kinetic energy from total energy minus potential energy
asked 1×
Sample 2026★☆☆☆☆
distribution of pulleys in fixed and movable blocks
asked 1×
Sample 2025★☆☆☆☆
weight of movable block reduces efficiency
asked 1×
Sample 2025★☆☆☆☆
kinetic energy dependence on mass and velocity
asked 1×
Sample 2025★☆☆☆☆
horse power as a unit of power
asked 1×
Sample 2025★☆☆☆☆
principle of moments for a lever
asked 1×
Sample 2024★☆☆☆☆
mechanical advantage from arm lengths
asked 1×
Sample 2024★☆☆☆☆
kinetic energy, mass and velocity relation
asked 1×
Sample 2024★☆☆☆☆
block and tackle for maximum velocity ratio
asked 1×
Sample 2024★☆☆☆☆
velocity ratio of a two-pulley block and tackle
asked 1×
Board 2026★☆☆☆☆
effort depends on load-arm in a class II lever
asked 1×
Board 2026★☆☆☆☆
mechanical advantage and effort arm in a lever
asked 1×
Board 2026★☆☆☆☆
electron volt as a unit of work/energy
asked 1×
Board 2026★☆☆☆☆
class of lever for scissors
asked 1×
Board 2026★☆☆☆☆
work done depends on displacement along the force
asked 1×
Board 2026★☆☆☆☆
speed from conservation of energy on falling
asked 1×
Board 2026★☆☆☆☆
energy loss from difference in heights
asked 1×
Board 2026★☆☆☆☆
mechanical advantage of fixed and movable pulleys
asked 1×
Board 2026★☆☆☆☆
potential energy gained depends only on load and height
asked 1×
Board 2026★☆☆☆☆
efficiency of an ideal machine
asked 1×
Board 2026★☆☆☆☆
gain in kinetic energy for non-zero initial velocity
asked 1×
Sample 2023★☆☆☆☆
energy conversion in a pendulum
asked 1×
Sample 2023★☆☆☆☆
number of pulleys and velocity ratio
asked 1×
Sample 2023★☆☆☆☆
kinetic energy proportional to square of velocity
asked 1×
Sample 2023★☆☆☆☆
block and tackle arrangement for maximum velocity ratio
asked 1×
Sample 2023★☆☆☆☆
energy transformation while burning a candle
asked 1×
Board 2025★☆☆☆☆
slope of load vs effort graph is mechanical advantage
asked 1×
Board 2025★☆☆☆☆
classifying levers
asked 1×
Board 2025★☆☆☆☆
mechanical advantage depends on effort arm length
asked 1×
Board 2025★☆☆☆☆
conservation of energy relating height and kinetic energy
asked 1×
Board 2025★☆☆☆☆
kinetic energy after energy loss to friction
asked 1×
Board 2025★☆☆☆☆
energy conversion in a device
asked 1×
Board 2024★☆☆☆☆
displacement in direction of force for work
asked 1×
Board 2024★☆☆☆☆
advantage of block and tackle over single movable pulley
asked 1×
Board 2024★☆☆☆☆
more pulleys in fixed block for effort direction
asked 1×
Board 2024★☆☆☆☆
power as work per unit time
asked 1×
Board 2024★☆☆☆☆
conservation of mechanical energy with and without friction
asked 1×
Board 2024★☆☆☆☆
mechanical energy conserved only without friction
asked 1×
Board 2024★☆☆☆☆
total energy always conserved
asked 1×
Board 2024★☆☆☆☆
pulley system of a given velocity ratio
asked 1×
Board 2024★☆☆☆☆
mechanical advantage and effort from efficiency and velocity ratio
asked 1×
Board 2024★☆☆☆☆
kinetic energy dependence on speed
asked 1×
Board 2023★☆☆☆☆
energy conversion in an appliance
asked 1×
Board 2023★☆☆☆☆
single movable pulley
asked 1×
Board 2023★☆☆☆☆
advantage of a single movable pulley
asked 1×
Board 2023★☆☆☆☆
angle between force and displacement for negative work
asked 1×
Board 2023★☆☆☆☆
weight from potential energy per height
asked 1×
Board 2023★☆☆☆☆
power = force x velocity
asked 1×
Board 2023★☆☆☆☆
block and tackle pulley system
asked 1×
Board 2023★☆☆☆☆
MA equals VR for an ideal machine
asked 1×
Board 2023★☆☆☆☆
work done via change in kinetic energy
asked 1×
Board 2023★☆☆☆☆
power as work done per unit time
asked 1×
Board 2023★☆☆☆☆
Refraction of Light and Lenses · Light
total internal reflection in optical fibres
asked 4×
Sample 2024Sample 2025Sample 2026Sample 2027★★★★☆
a lens of two refractive indices forms two images
asked 4×
Sample 2024Sample 2025Sample 2026Sample 2027★★★★☆
concave lens forms virtual erect diminished images
asked 4×
Sample 2024Sample 2025Sample 2026Sample 2027★★★★☆
total internal reflection at a water surface
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
nature of image for object beyond 2F
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
lens formula for image distance
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
conditions for total internal reflection
asked 2×
Sample 2026Sample 2027★★☆☆☆
adjusting screen to the image position of a convex lens
asked 2×
Sample 2025Sample 2026★★☆☆☆
converging or diverging depends on relative refractive index of lens and medium
asked 2×
Sample 2025Sample 2026★★☆☆☆
total internal reflection in a prism
asked 3×
Board 2023Sample 2023Sample 2024★★☆☆☆
refractive index decreases with rise in temperature
asked 2×
Sample 2024Sample 2025★★☆☆☆
differences between reflection and total internal reflection
asked 2×
Sample 2024Sample 2025★★☆☆☆
relating angle of incidence to refracted ray path in a prism
asked 2×
Board 2026★★☆☆☆
refraction causes apparent shift of an object
asked 2×
Sample 2023Sample 2024★★☆☆☆
apparent shift increases with block thickness
asked 2×
Sample 2023Sample 2024★★☆☆☆
lens formula for a concave lens
asked 2×
Board 2025Sample 2023★☆☆☆☆
total internal reflection beyond the critical angle
asked 1×
Sample 2027★☆☆☆☆
concave lens modelled as two prisms base outward
asked 1×
Sample 2027★☆☆☆☆
deviation decreases when prism is in a denser surrounding medium
asked 1×
Sample 2027★☆☆☆☆
speed of light minimum in the densest medium
asked 1×
Sample 2027★☆☆☆☆
wavelength changes with refractive index
asked 1×
Sample 2027★☆☆☆☆
equal refractive indices give parallel emergent ray
asked 1×
Sample 2027★☆☆☆☆
minimum deviation greater for shorter wavelength
asked 1×
Sample 2027★☆☆☆☆
deviation increases with prism angle
asked 1×
Sample 2027★☆☆☆☆
convex lens forms a real image on a screen
asked 1×
Sample 2027★☆☆☆☆
sum of object and image distances equals separation
asked 1×
Sample 2027★☆☆☆☆
magnification as ratio of image to object distance
asked 1×
Sample 2027★☆☆☆☆
solve for image distance using magnification and separation
asked 1×
Sample 2027★☆☆☆☆
image formation by a concave lens
asked 1×
Sample 2027★☆☆☆☆
refraction through air of varying density
asked 1×
Sample 2026★☆☆☆☆
apparent depth from real depth and refractive index
asked 1×
Sample 2026★☆☆☆☆
apparent depth decreases with higher refractive index
asked 1×
Sample 2026★☆☆☆☆
identifying reflection, refraction, critical angle and refracted rays in a ray diagram
asked 1×
Sample 2025★☆☆☆☆
minimum object-image distance for a convex lens
asked 1×
Sample 2024★☆☆☆☆
light speeds up entering a rarer medium
asked 1×
Sample 2024★☆☆☆☆
Snell's law refractive index between two media
asked 1×
Board 2026★☆☆☆☆
maximum virtual image distance for a concave lens
asked 1×
Board 2026★☆☆☆☆
wavelength change when light enters a rarer medium
asked 1×
Board 2026★☆☆☆☆
identifying lens type from a v-u graph
asked 1×
Board 2026★☆☆☆☆
magnification for object between F and 2F of a convex lens
asked 1×
Board 2026★☆☆☆☆
minimum deviation when incidence equals emergence
asked 1×
Board 2026★☆☆☆☆
product of refractive indices for reversed refraction
asked 1×
Board 2026★☆☆☆☆
parallel surfaces give equal angles at both faces
asked 1×
Board 2026★☆☆☆☆
reasoning about parallel faces from emergent ray direction
asked 1×
Board 2026★☆☆☆☆
speed of light from refractive index
asked 1×
Board 2026★☆☆☆☆
speed of light independent of block width
asked 1×
Board 2026★☆☆☆☆
path of a ray through a prism with total internal reflection
asked 1×
Board 2026★☆☆☆☆
lens formula with magnification conditions
asked 1×
Board 2026★☆☆☆☆
correct refraction through lenses
asked 1×
Sample 2023★☆☆☆☆
bending towards normal when entering a denser medium
asked 1×
Sample 2023★☆☆☆☆
total internal reflection in diamond
asked 1×
Sample 2023★☆☆☆☆
only a convex lens forms a real image on a screen
asked 1×
Sample 2023★☆☆☆☆
convex lens can form magnified images
asked 1×
Sample 2023★☆☆☆☆
angle of minimum deviation from a deviation curve
asked 1×
Sample 2023★☆☆☆☆
symmetry of the prism deviation curve
asked 1×
Sample 2023★☆☆☆☆
concave lens forms virtual diminished images
asked 1×
Sample 2023★☆☆☆☆
identifying lens type from a ray path
asked 1×
Sample 2023★☆☆☆☆
image formation by a lens
asked 1×
Sample 2023★☆☆☆☆
application of a lens forming a particular image
asked 1×
Sample 2023★☆☆☆☆
frequency unchanged during refraction
asked 1×
Board 2025★☆☆☆☆
object position from magnification for a convex lens
asked 1×
Board 2025★☆☆☆☆
deviation due to total internal reflection in a prism
asked 1×
Board 2025★☆☆☆☆
refractive index independent of angle of incidence
asked 1×
Board 2025★☆☆☆☆
total internal reflection requires travel from denser to rarer medium
asked 1×
Board 2025★☆☆☆☆
total internal reflection condition in a prism
asked 1×
Board 2025★☆☆☆☆
path of a totally internally reflected ray through a prism
asked 1×
Board 2025★☆☆☆☆
real depth from apparent depth and refractive index
asked 1×
Board 2025★☆☆☆☆
apparent depth depends on refractive index which varies with colour
asked 1×
Board 2025★☆☆☆☆
apparent depth depends on distance from viewing surface
asked 1×
Board 2025★☆☆☆☆
image formation by convex lens for object at 2F
asked 1×
Board 2025★☆☆☆☆
effect of focal length on image size
asked 1×
Board 2025★☆☆☆☆
lateral displacement depends on angle of incidence
asked 1×
Board 2025★☆☆☆☆
speed of light same for a given colour in a medium
asked 1×
Board 2025★☆☆☆☆
magnification by a concave lens
asked 1×
Board 2024★☆☆☆☆
shift of image due to a glass slab in the path
asked 1×
Board 2024★☆☆☆☆
magnifying glass object within focus
asked 1×
Board 2024★☆☆☆☆
concave lens forms diminished images
asked 1×
Board 2024★☆☆☆☆
lens formula and power
asked 1×
Board 2024★☆☆☆☆
critical angle, prism angle and total internal reflection
asked 1×
Board 2024★☆☆☆☆
reciprocal relation of relative refractive indices
asked 1×
Board 2024★☆☆☆☆
principle of reversibility of light / reciprocal relation
asked 1×
Board 2024★☆☆☆☆
refractive index varies with temperature
asked 1×
Board 2024★☆☆☆☆
light is slower in a denser medium than vacuum
asked 1×
Board 2024★☆☆☆☆
refractive index as ratio of speeds
asked 1×
Board 2024★☆☆☆☆
symmetric ray path through a prism at minimum deviation
asked 1×
Board 2024★☆☆☆☆
factors affecting angle of deviation of a prism
asked 1×
Board 2024★☆☆☆☆
nature of image formed by a concave lens
asked 1×
Board 2023★☆☆☆☆
angle of refraction at normal incidence
asked 1×
Board 2023★☆☆☆☆
total internal reflection everyday example
asked 1×
Board 2023★☆☆☆☆
magnification limits of a concave lens
asked 1×
Board 2023★☆☆☆☆
focal length unchanged when lens partly covered
asked 1×
Board 2023★☆☆☆☆
prism angle of deviation relation
asked 1×
Board 2023★☆☆☆☆
emergent ray of a prism
asked 1×
Board 2023★☆☆☆☆
lens formula to find object distance
asked 1×
Board 2023★☆☆☆☆
apparent depth and refractive index
asked 1×
Board 2023★☆☆☆☆
critical angle and refractive index relation
asked 1×
Board 2023★☆☆☆☆
Spectrum and Dispersion · Light
chromatic aberration - colours focus at different points
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
order of wavelengths in the electromagnetic spectrum
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
red light refracts least and travels fastest in a prism
asked 2×
Sample 2025Sample 2026★★☆☆☆
ultraviolet radiations studied using a quartz prism
asked 2×
Sample 2025Sample 2026★★☆☆☆
uses of ultraviolet radiation
asked 2×
Sample 2025Sample 2026★★☆☆☆
infrared and scattering
asked 2×
Sample 2024Sample 2025★★☆☆☆
violet deviates most, red least
asked 2×
Sample 2024Sample 2025★★☆☆☆
monochromatic light is not dispersed
asked 2×
Sample 2024Sample 2025★★☆☆☆
shorter wavelength deviates more
asked 1×
Sample 2027★☆☆☆☆
scattering inversely proportional to fourth power of wavelength
asked 1×
Sample 2027★☆☆☆☆
scattering depends on wavelength
asked 2×
Board 2024Board 2025★☆☆☆☆
scattering of light reduces visibility in fog
asked 1×
Sample 2026★☆☆☆☆
microwaves used in GPS communication
asked 1×
Sample 2026★☆☆☆☆
ultraviolet radiations obtained using a quartz prism
asked 1×
Sample 2024★☆☆☆☆
infrared radiation beyond the red end of the spectrum
asked 1×
Board 2026★☆☆☆☆
scattering of light and refractive index dependence on colour
asked 1×
Board 2026★☆☆☆☆
ultraviolet radiation detects fake currency
asked 1×
Board 2026★☆☆☆☆
speed of different colours in a medium
asked 1×
Sample 2023★☆☆☆☆
extreme colours of the visible spectrum
asked 1×
Sample 2023★☆☆☆☆
all colours travel at the same speed in vacuum
asked 1×
Sample 2023★☆☆☆☆
order of electromagnetic waves by wavelength
asked 1×
Board 2025★☆☆☆☆
ultraviolet studied using a quartz prism
asked 1×
Board 2025★☆☆☆☆
infrared used in remote sensing
asked 1×
Board 2025★☆☆☆☆
visible (red) light used in traffic signals
asked 1×
Board 2025★☆☆☆☆
common properties of electromagnetic radiations
asked 1×
Board 2025★☆☆☆☆
order of electromagnetic spectrum by wavelength
asked 1×
Board 2024★☆☆☆☆
X-rays used to detect bone fractures
asked 1×
Board 2024★☆☆☆☆
common properties of electromagnetic waves
asked 1×
Board 2024★☆☆☆☆
red light scatters least and travels farthest
asked 1×
Board 2024★☆☆☆☆
speed of different colours of light in a medium
asked 1×
Board 2023★☆☆☆☆
colour-dependent refraction at a boundary
asked 1×
Board 2023★☆☆☆☆
speed of different colours in glass
asked 1×
Board 2023★☆☆☆☆
different colours refract by different angles
asked 1×
Board 2023★☆☆☆☆
uses of infrared radiation
asked 1×
Board 2023★☆☆☆☆
dispersion of light through a prism
asked 1×
Board 2023★☆☆☆☆
Sound · Sound
pitch depends on frequency
asked 4×
Sample 2024Sample 2025Sample 2026Sample 2027★★★★☆
echo distance from time and speed
asked 4×
Sample 2023Sample 2024Sample 2025Sample 2026★★★★☆
change in echo time relates to distance moved
asked 4×
Sample 2023Sample 2024Sample 2025Sample 2026★★★★☆
ultrasonic waves used in echo depth sounding
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
advantages of ultrasonic waves
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
resonance and timing of periodic force
asked 2×
Sample 2025Sample 2026★★☆☆☆
resonance
asked 2×
Sample 2025Sample 2026★★☆☆☆
resonance builds amplitude when driving frequency matches natural frequency
asked 2×
Sample 2025Sample 2026★★☆☆☆
resonance in tuning
asked 3×
Board 2023Sample 2023Sample 2024★★☆☆☆
frequency and its SI unit
asked 2×
Sample 2023Sample 2024★★☆☆☆
forced vibrations
asked 2×
Board 2024Sample 2024★☆☆☆☆
minimum echo distance depends on speed of sound
asked 1×
Sample 2027★☆☆☆☆
quality distinguishes waves of same loudness and pitch
asked 1×
Sample 2027★☆☆☆☆
loudness depends on amplitude at same pitch
asked 1×
Sample 2027★☆☆☆☆
echoes from two walls at different distances
asked 1×
Sample 2027★☆☆☆☆
resonance of a string with a tuning fork
asked 1×
Sample 2027★☆☆☆☆
thicker wire has lower natural frequency
asked 1×
Sample 2027★☆☆☆☆
free/natural vibrations
asked 2×
Board 2023Sample 2023★☆☆☆☆
threshold of hearing
asked 1×
Sample 2026★☆☆☆☆
loudness increases at resonance
asked 1×
Sample 2024★☆☆☆☆
pitch depends on length of the air column
asked 1×
Board 2026★☆☆☆☆
quality of sound depends on waveform
asked 1×
Board 2026★☆☆☆☆
definition of natural vibrations
asked 1×
Board 2026★☆☆☆☆
amplitude of natural versus damped vibrations
asked 1×
Board 2026★☆☆☆☆
free/natural vibrations of a ruler
asked 1×
Board 2026★☆☆☆☆
frequency increases as vibrating length decreases
asked 1×
Board 2026★☆☆☆☆
echo and direct sound travel times
asked 1×
Board 2026★☆☆☆☆
loudness depends on amplitude
asked 1×
Board 2026★☆☆☆☆
loudness relates to intensity
asked 1×
Sample 2023★☆☆☆☆
reading wave period from a displacement-time graph
asked 1×
Sample 2023★☆☆☆☆
factors affecting frequency of a pendulum
asked 1×
Sample 2023★☆☆☆☆
pitch and length of air/water column
asked 1×
Board 2025★☆☆☆☆
tension affects frequency/time period of a vibrating wire
asked 1×
Board 2025★☆☆☆☆
pitch affected by change in frequency
asked 1×
Board 2025★☆☆☆☆
echo/SONAR distance from time and speed
asked 1×
Board 2025★☆☆☆☆
resonance of strings with a tuning fork
asked 1×
Board 2025★☆☆☆☆
frequency of a string versus its cross-sectional area
asked 1×
Board 2025★☆☆☆☆
minimum distance for echo depends on speed of sound
asked 1×
Board 2024★☆☆☆☆
ultrasonic waves used in SONAR
asked 1×
Board 2024★☆☆☆☆
echo time from distance and speed of sound
asked 1×
Board 2024★☆☆☆☆
resonance of air column
asked 1×
Board 2024★☆☆☆☆
resonance when natural frequency matches tuning fork
asked 1×
Board 2024★☆☆☆☆
resonating length inversely related to frequency
asked 1×
Board 2024★☆☆☆☆
forced vibrations under a periodic force
asked 1×
Board 2023★☆☆☆☆
quality/timbre distinguishes notes of same pitch and loudness
asked 1×
Board 2023★☆☆☆☆
factors affecting frequency of vibration
asked 1×
Board 2023★☆☆☆☆
amplitude/surface area affects loudness
asked 1×
Board 2023★☆☆☆☆
SONAR echo distance
asked 1×
Board 2023★☆☆☆☆
definition of resonance
asked 1×
Board 2023★☆☆☆☆
examples of resonance
asked 1×
Board 2023★☆☆☆☆
Current Electricity and Household Circuits · Electricity and Magnetism
old colour code of the earth wire
asked 4×
Sample 2024Sample 2025Sample 2026Sample 2027★★★★☆
current distribution in a resistor network
asked 3×
Sample 2023Sample 2024Sample 2025★★★☆☆
resistivity depends on temperature
asked 2×
Sample 2026Sample 2027★★☆☆☆
energy consumed and time from power rating
asked 2×
Sample 2026Sample 2027★★☆☆☆
safe wiring with earthing and correct fuse
asked 2×
Sample 2026Sample 2027★★☆☆☆
earthing and fuse rating from appliance current
asked 2×
Sample 2026Sample 2027★★☆☆☆
resistance from resistivity, length and area
asked 2×
Sample 2026Sample 2027★★☆☆☆
electrical power from voltage and resistance
asked 2×
Sample 2026Sample 2027★★☆☆☆
mass from volume and density
asked 2×
Sample 2026Sample 2027★★☆☆☆
temperature rise from heat produced and heat capacity
asked 2×
Sample 2026Sample 2027★★☆☆☆
brightness in parallel connection
asked 2×
Sample 2026Sample 2027★★☆☆☆
equal voltage across parallel branches
asked 2×
Sample 2026Sample 2027★★☆☆☆
parallel circuit continues if one branch fails
asked 2×
Sample 2026Sample 2027★★☆☆☆
resistance depends on length and cross-section
asked 2×
Sample 2025Sample 2026★★☆☆☆
terminal voltage with negligible internal resistance
asked 2×
Sample 2025Sample 2026★★☆☆☆
specific resistance is a material property
asked 2×
Sample 2025Sample 2026★★☆☆☆
series and parallel resistor combinations with internal resistance
asked 2×
Sample 2023Sample 2025★★☆☆☆
resistivity depends only on material
asked 2×
Sample 2023Sample 2024★★☆☆☆
meaning of a power-voltage rating
asked 2×
Sample 2023Sample 2024★★☆☆☆
series and parallel resistor combinations
asked 2×
Board 2024Sample 2024★☆☆☆☆
series and parallel switching in a circuit
asked 1×
Sample 2027★☆☆☆☆
current division in parallel resistors
asked 1×
Sample 2027★☆☆☆☆
total current as sum of branch currents
asked 1×
Sample 2027★☆☆☆☆
effect of opening a switch on current distribution
asked 1×
Sample 2027★☆☆☆☆
colour code of household wiring
asked 2×
Board 2024Sample 2023★☆☆☆☆
current distribution in series and parallel resistors
asked 1×
Sample 2026★☆☆☆☆
high resistance material for a bulb filament
asked 1×
Sample 2025★☆☆☆☆
resistivity is a material property while resistance depends on dimensions
asked 1×
Sample 2025★☆☆☆☆
earthing of the metal case for safety
asked 1×
Sample 2025★☆☆☆☆
high resistance material for heating coil
asked 1×
Sample 2024★☆☆☆☆
resistance proportional to length
asked 1×
Sample 2024★☆☆☆☆
advantages of parallel household wiring
asked 1×
Sample 2024★☆☆☆☆
fuse and switch on the live wire
asked 1×
Sample 2024★☆☆☆☆
fuse must be in the live wire to protect
asked 1×
Sample 2024★☆☆☆☆
failure of a lamp in series versus parallel
asked 1×
Board 2026★☆☆☆☆
equivalent resistance of parallel resistors
asked 1×
Board 2026★☆☆☆☆
superconductor near absolute zero
asked 1×
Board 2026★☆☆☆☆
terminal voltage falls as current increases
asked 1×
Board 2026★☆☆☆☆
terminal voltage equals emf minus Ir
asked 1×
Board 2026★☆☆☆☆
resistances from power ratings and voltage division
asked 1×
Board 2026★☆☆☆☆
effect of a fused bulb in a series circuit
asked 1×
Board 2026★☆☆☆☆
correct wiring of a three-pin plug
asked 1×
Board 2026★☆☆☆☆
safety risk of wrong plug wiring
asked 1×
Board 2026★☆☆☆☆
functioning of appliance with mis-wired plug
asked 1×
Board 2026★☆☆☆☆
series and parallel resistances with an open switch
asked 1×
Board 2026★☆☆☆☆
series and parallel resistances with a closed switch
asked 1×
Board 2026★☆☆☆☆
fuse rating from appliance current
asked 1×
Board 2026★☆☆☆☆
electrical energy in kilowatt-hours
asked 1×
Board 2026★☆☆☆☆
cost of electrical energy from units consumed
asked 1×
Board 2026★☆☆☆☆
resistance from slope of an I-V graph
asked 1×
Sample 2023★☆☆☆☆
resistance depends on cross-sectional area
asked 1×
Sample 2023★☆☆☆☆
switch must be in the live wire
asked 1×
Sample 2023★☆☆☆☆
potential difference between neutral and earth
asked 1×
Sample 2023★☆☆☆☆
fuse connected in the live wire
asked 1×
Sample 2023★☆☆☆☆
function of the main switch
asked 1×
Sample 2023★☆☆☆☆
terminal voltage and internal resistance
asked 1×
Board 2025★☆☆☆☆
identifying series and parallel connections
asked 1×
Board 2025★☆☆☆☆
emf equals terminal voltage in open circuit
asked 1×
Board 2025★☆☆☆☆
earth wire colour code
asked 1×
Board 2025★☆☆☆☆
live wire colour code and switch connection
asked 1×
Board 2025★☆☆☆☆
mains AC frequency in India is 50 Hz
asked 1×
Board 2025★☆☆☆☆
resistance increases with temperature
asked 1×
Board 2025★☆☆☆☆
resistivity increases with temperature
asked 1×
Board 2025★☆☆☆☆
current rating of a household protective device
asked 1×
Board 2025★☆☆☆☆
main switch versus appliance switch
asked 1×
Board 2025★☆☆☆☆
unit of electrical energy measured by energy meter
asked 1×
Board 2025★☆☆☆☆
resistance and current from power rating
asked 1×
Board 2025★☆☆☆☆
effect of removing a bulb on others in a circuit
asked 1×
Board 2025★☆☆☆☆
specific resistance depends only on material
asked 1×
Board 2024★☆☆☆☆
terminal voltage in a closed circuit
asked 1×
Board 2024★☆☆☆☆
resistance of series combination
asked 1×
Board 2024★☆☆☆☆
brightness change with fewer series bulbs
asked 1×
Board 2024★☆☆☆☆
fuse rating vs appliance current
asked 1×
Board 2024★☆☆☆☆
ohmic vs non-ohmic conductor from V-I data
asked 1×
Board 2024★☆☆☆☆
constant V/I ratio for ohmic conductor
asked 1×
Board 2024★☆☆☆☆
statement of Ohm's law
asked 1×
Board 2024★☆☆☆☆
Ohm's law for current from a cell
asked 1×
Board 2024★☆☆☆☆
current distribution in series/parallel resistors
asked 1×
Board 2024★☆☆☆☆
formula for electrical energy dissipated
asked 1×
Board 2023★☆☆☆☆
relation between emf and terminal voltage
asked 1×
Board 2023★☆☆☆☆
meaning of a power and voltage rating
asked 1×
Board 2023★☆☆☆☆
circuit protection device (MCB/fuse)
asked 1×
Board 2023★☆☆☆☆
live wire connection of protective device
asked 1×
Board 2023★☆☆☆☆
definition of specific resistance (resistivity)
asked 1×
Board 2023★☆☆☆☆
resistivity independent of dimensions
asked 1×
Board 2023★☆☆☆☆
alloys with low temperature coefficient (manganin/constantan)
asked 1×
Board 2023★☆☆☆☆
Ohm's law with resistor combinations
asked 1×
Board 2023★☆☆☆☆
terminal voltage with internal resistance
asked 1×
Board 2023★☆☆☆☆
Magnetic Effect of Current and Electromagnetic Induction · Electricity and Magnetism
both AC and DC produce a magnetic field
asked 2×
Sample 2026Sample 2027★★☆☆☆
Fleming's left-hand rule
asked 3×
Board 2023Board 2025Sample 2023★★☆☆☆
step-down transformer
asked 2×
Sample 2024Sample 2025★★☆☆☆
turns ratio of a step-down transformer
asked 2×
Sample 2024Sample 2025★★☆☆☆
induced polarity opposes magnet motion (Lenz's law)
asked 2×
Sample 2023Sample 2024★★☆☆☆
iron core strengthens magnetic field
asked 2×
Board 2023Sample 2025★☆☆☆☆
controlling polarity and strength of an electromagnet
asked 2×
Board 2023Sample 2025★☆☆☆☆
induced current direction by Lenz's law
asked 1×
Sample 2027★☆☆☆☆
attraction of a magnetic material is independent of polarity
asked 1×
Sample 2027★☆☆☆☆
changing flux induces current (electromagnetic induction)
asked 1×
Sample 2027★☆☆☆☆
increasing current increases flux in the same sense
asked 1×
Sample 2027★☆☆☆☆
decreasing resistance increases current and flux
asked 1×
Sample 2027★☆☆☆☆
power conserved in an ideal transformer
asked 1×
Sample 2026★☆☆☆☆
current in either direction produces a magnetic field
asked 1×
Sample 2026★☆☆☆☆
peak emf increases with coil speed
asked 1×
Sample 2026★☆☆☆☆
time period halves as coil speed doubles
asked 1×
Sample 2026★☆☆☆☆
time period inversely related to rotation speed
asked 1×
Sample 2026★☆☆☆☆
magnetic polarity and field lines of a current-carrying coil
asked 1×
Sample 2025★☆☆☆☆
AC generator works on electromagnetic induction
asked 1×
Sample 2025★☆☆☆☆
use of an AC generator
asked 1×
Sample 2025★☆☆☆☆
polarity of a current loop from field direction
asked 1×
Sample 2025★☆☆☆☆
Lenz's law and conservation of energy
asked 1×
Sample 2024★☆☆☆☆
current direction reverses as the magnet leaves
asked 1×
Sample 2024★☆☆☆☆
Lenz's law for induced current direction
asked 1×
Sample 2024★☆☆☆☆
factors affecting magnitude of induced current
asked 1×
Sample 2024★☆☆☆☆
circular magnetic field around a current-carrying wire
asked 1×
Board 2026★☆☆☆☆
soft iron core intensifies the field in a generator
asked 1×
Board 2026★☆☆☆☆
slip rings and brushes maintain contact
asked 1×
Board 2026★☆☆☆☆
relative motion determines induced emf
asked 1×
Board 2026★☆☆☆☆
relative velocity increases induced emf
asked 1×
Board 2026★☆☆☆☆
factors affecting electromagnet strength
asked 1×
Sample 2023★☆☆☆☆
electromagnetic induction
asked 1×
Sample 2023★☆☆☆☆
Lenz's law for induced polarity
asked 1×
Sample 2023★☆☆☆☆
Lenz's law direction of induced current
asked 1×
Board 2025★☆☆☆☆
turns ratio of a step-up transformer
asked 1×
Board 2025★☆☆☆☆
alternating current produces a varying magnetic field
asked 1×
Board 2025★☆☆☆☆
magnetising a steel bar with a solenoid
asked 1×
Board 2025★☆☆☆☆
magnetic field lines around a bar magnet
asked 1×
Board 2025★☆☆☆☆
direction of force on a current-carrying conductor
asked 1×
Board 2025★☆☆☆☆
force on conductor and effect of cross-section on current
asked 1×
Board 2025★☆☆☆☆
greater area lowers resistance and raises current, increasing force
asked 1×
Board 2025★☆☆☆☆
factors affecting speed of a DC motor
asked 1×
Board 2024★☆☆☆☆
step-up vs step-down transformer
asked 1×
Board 2024★☆☆☆☆
coil carrying larger current is thicker
asked 1×
Board 2024★☆☆☆☆
factors affecting induced emf/current
asked 1×
Board 2024★☆☆☆☆
magnetic field direction around a conductor and its dependence on current
asked 1×
Board 2024★☆☆☆☆
magnetic field strength vs current
asked 1×
Board 2023★☆☆☆☆
force on a current-carrying conductor in a field
asked 1×
Board 2023★☆☆☆☆
polarity of a current loop/solenoid
asked 1×
Board 2023★☆☆☆☆
Calorimetry and Latent Heat · Heat
liquid-state region of a cooling curve
asked 5×
Sample 2023Sample 2024Sample 2025Sample 2026Sample 2027★★★★★
latent heat of fusion
asked 4×
Sample 2024Sample 2025Sample 2026Sample 2027★★★★☆
condensation point from a cooling curve
asked 4×
Sample 2024Sample 2025Sample 2026Sample 2027★★★★☆
method of mixtures with latent heat of fusion
asked 4×
Board 2024Board 2025Sample 2024Sample 2025★★★☆☆
definition of heat capacity
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
method of mixtures to find heat capacity
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
latent heat of fusion makes ice a better coolant
asked 3×
Sample 2023Sample 2024Sample 2025★★★☆☆
specific heat differs between liquid and solid states
asked 2×
Sample 2026Sample 2027★★☆☆☆
method of mixtures to find an unknown high temperature
asked 2×
Sample 2026Sample 2027★★☆☆☆
specific heat capacity independent of dimensions
asked 2×
Board 2026Sample 2027★★☆☆☆
principle of method of mixtures
asked 3×
Board 2023Board 2026Sample 2023★★☆☆☆
CGS unit of specific heat capacity
asked 1×
Sample 2027★☆☆☆☆
heat released proportional to mass
asked 1×
Sample 2027★☆☆☆☆
specific heat from slope of heat versus mass graph
asked 1×
Sample 2027★☆☆☆☆
SI unit of specific heat capacity
asked 1×
Sample 2026★☆☆☆☆
specific latent heat proportional to melting time at equal heating rate
asked 1×
Board 2026★☆☆☆☆
calorimeter lid reduces heat loss by convection
asked 1×
Board 2026★☆☆☆☆
temperature rise from heat and thermal capacity
asked 1×
Board 2026★☆☆☆☆
latent heat released/absorbed during melting
asked 1×
Board 2026★☆☆☆☆
heat capacity depends on mass
asked 1×
Board 2026★☆☆☆☆
reading freezing point from a cooling curve
asked 1×
Board 2026★☆☆☆☆
phase change at constant temperature on a cooling curve
asked 1×
Board 2026★☆☆☆☆
rate of heat loss and cooling curve slope
asked 1×
Board 2026★☆☆☆☆
latent heat proportional to specific latent heat
asked 1×
Sample 2023★☆☆☆☆
high specific heat liquid suitable as coolant
asked 1×
Sample 2023★☆☆☆☆
latent heat plus heating of resulting water
asked 1×
Sample 2023★☆☆☆☆
reading condensation and solidification points from a cooling curve
asked 1×
Sample 2023★☆☆☆☆
specific heat capacity is independent of mass
asked 1×
Board 2025★☆☆☆☆
lowest specific heat attains highest temperature
asked 1×
Board 2025★☆☆☆☆
latent heat depends on mass
asked 1×
Board 2025★☆☆☆☆
heat of melting using latent heat of fusion
asked 1×
Board 2025★☆☆☆☆
specific heat capacity from temperature rise
asked 1×
Board 2025★☆☆☆☆
calorimeter material has low specific heat
asked 1×
Board 2025★☆☆☆☆
specific heat capacity differs with state
asked 1×
Board 2025★☆☆☆☆
latent heat during melting at constant temperature
asked 1×
Board 2024★☆☆☆☆
slope of heat vs temperature graph is heat capacity
asked 1×
Board 2024★☆☆☆☆
heat for melting using latent heat of fusion
asked 1×
Board 2024★☆☆☆☆
latent heat released during freezing
asked 1×
Board 2024★☆☆☆☆
kinetic energy of molecules on freezing
asked 1×
Board 2024★☆☆☆☆
latent heat makes water at 0C hold more energy than ice at 0C
asked 1×
Board 2024★☆☆☆☆
property of specific latent heat
asked 1×
Board 2023★☆☆☆☆
meaning of a specific heat capacity value
asked 1×
Board 2023★☆☆☆☆
relation between heat capacity, mass and specific heat
asked 1×
Board 2023★☆☆☆☆
temperature rise vs heat capacity
asked 1×
Board 2023★☆☆☆☆
latent heat plus specific heat combined calculation
asked 1×
Board 2023★☆☆☆☆
calorimeter material (copper)
asked 1×
Board 2023★☆☆☆☆
property of calorimeter material (low specific heat, good conductor)
asked 1×
Board 2023★☆☆☆☆
Modern Physics (Radioactivity and Nuclear Energy) · Modern Physics
change in protons and neutrons on alpha emission
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
gamma rays have highest penetrating power
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
gamma emission does not change mass number
asked 3×
Sample 2024Sample 2025Sample 2026★★★☆☆
isotopes after alpha and two beta decays
asked 3×
Sample 2023Sample 2024Sample 2025★★★☆☆
atomic number change in alpha and beta decays
asked 3×
Sample 2023Sample 2024Sample 2025★★★☆☆
beta decay identified from a protons-neutrons graph
asked 2×
Sample 2026Sample 2027★★☆☆☆
isotopes have the same atomic number
asked 2×
Sample 2026Sample 2027★★☆☆☆
deflection of a radiation in an electric field
asked 2×
Sample 2026Sample 2027★★☆☆☆
position after alpha and two beta decays
asked 2×
Sample 2024Sample 2025★★☆☆☆
alpha decay equation balancing
asked 2×
Sample 2023Sample 2024★★☆☆☆
deflection of alpha particles in an electric field
asked 2×
Sample 2023Sample 2024★★☆☆☆
changes in mass and atomic number over two alpha decays
asked 1×
Sample 2027★☆☆☆☆
fission occurs at ordinary conditions unlike fusion
asked 1×
Sample 2027★☆☆☆☆
balancing a nuclear reaction to find the product
asked 1×
Sample 2027★☆☆☆☆
mass defect in a fission reaction
asked 1×
Sample 2027★☆☆☆☆
nuclear fusion powers the sun
asked 1×
Sample 2026★☆☆☆☆
identifying radiation from magnetic deflection direction
asked 1×
Sample 2025★☆☆☆☆
daughter element position on a protons-neutrons graph
asked 1×
Sample 2025★☆☆☆☆
Fleming's left-hand rule for deflection direction
asked 1×
Sample 2025★☆☆☆☆
nuclear waste and its safe disposal
asked 1×
Sample 2024★☆☆☆☆
mass number equals protons plus neutrons
asked 1×
Board 2026★☆☆☆☆
deflection of radiations in a magnetic field
asked 1×
Board 2026★☆☆☆☆
differences between nuclear fission and fusion
asked 1×
Board 2026★☆☆☆☆
lead used for radiation shielding
asked 1×
Board 2026★☆☆☆☆
high density lead absorbs radiation
asked 1×
Board 2026★☆☆☆☆
beta emission conserves mass number and is deflected
asked 1×
Board 2026★☆☆☆☆
beta decay equation
asked 1×
Board 2026★☆☆☆☆
penetrating power of radiations
asked 1×
Sample 2023★☆☆☆☆
shift in periodic table on beta decay
asked 1×
Sample 2023★☆☆☆☆
beta particles deflect towards positive plate
asked 1×
Sample 2023★☆☆☆☆
background radiation
asked 1×
Sample 2023★☆☆☆☆
mass number change in alpha decay
asked 1×
Sample 2023★☆☆☆☆
change in atomic number on alpha decay
asked 1×
Board 2025★☆☆☆☆
gamma has lowest ionizing power
asked 1×
Board 2025★☆☆☆☆
reading protons vs neutrons graph for an element
asked 1×
Board 2025★☆☆☆☆
change in protons and neutrons after alpha and beta decay
asked 1×
Board 2025★☆☆☆☆
mass number after alpha and beta decay
asked 1×
Board 2025★☆☆☆☆
identifying a nuclear process (fission)
asked 1×
Board 2025★☆☆☆☆
balancing mass/atomic numbers in a nuclear reaction
asked 1×
Board 2025★☆☆☆☆
identifying a missing product of a nuclear reaction
asked 1×
Board 2025★☆☆☆☆
mass number unchanged in beta decay
asked 1×
Board 2024★☆☆☆☆
decay rate independent of environment
asked 1×
Board 2024★☆☆☆☆
identify a radioisotope and state a use
asked 1×
Board 2024★☆☆☆☆
nuclear fission equation balancing
asked 1×
Board 2024★☆☆☆☆
alpha and beta decay chain
asked 1×
Board 2024★☆☆☆☆
U-235 is fissionable
asked 1×
Board 2024★☆☆☆☆
deflection of radioactive radiations in a field
asked 1×
Board 2023★☆☆☆☆
condition for a nucleus to become radioactive
asked 1×
Board 2023★☆☆☆☆
radioactivity independent of chemical state
asked 1×
Board 2023★☆☆☆☆
alpha and beta decay equations
asked 1×
Board 2023★☆☆☆☆
ionizing power of radiations
asked 1×
Board 2023★☆☆☆☆
gamma rays undeviated in electric field
asked 1×
Board 2023★☆☆☆☆
shielding in a nuclear reactor
asked 1×
Board 2023★☆☆☆☆
sources of background radiation
asked 1×
Board 2023★☆☆☆☆

Importance = how often a topic was asked × how recent, with extra weight for the latest official sample paper.

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