Maharashtra Board Class 12 Physics Guess Paper 2027
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A full practice paper on the official Physics pattern, built from the most-likely questions by repetition analysis. Not an official or leaked paper.
Maharashtra Board Class 12 Physics — Guess Paper 2027
Time: 3 hours · Maximum marks: 70 · Practice paper
Section AQ1 ten MCQs (1 mark each) and Q2 eight very short answer questions (1 mark each)
Q1.1 mark
The Boolean equation for NOR gate is (a) Y = A.B (b) Y = (A + B) bar (c) Y = A bar (d) Y = A + B
Why this question: Semiconductor Devices → Identify logic gate / its Boolean expression — appeared 4× Board 2022Board 2023Board 2025Board 2026
Q2.1 mark
A conducting rod of length l, rotates about one of its ends in a uniform magnetic field B, with a constant angular velocity omega. If the plane of rotation is perpendicular to B, the e.m.f. induced between the ends of rod is _____. (a) (1/2) B omega l2 (b) B omega l2 (c) 2 B omega l2 (d) B omega l
Why this question: Electromagnetic Induction → Motional emf of a rotating conducting bar — appeared 3× Board 2025Board 2026
Q3.1 mark
The power rating of a ceiling fan rotating with a constant torque of 2 Nm with an angular speed of 2 pi rad/s will be _____. (a) pi W (b) 2 pi W (c) 3 pi W (d) 4 pi W
Why this question: Rotational Dynamics → Numerical: rotational power from torque and angular speed — appeared 2× Board 2025Board 2026
Q4.1 mark
Cyclotron can not accelerate _____ (a) protons (b) alpha-particles (c) neutrons (d) deuterons
Why this question: Magnetic Fields due to Electric Current → MCQ: cyclotron - particles it can accelerate — appeared 2× Board 2024Board 2026
Q5.1 mark
In a purely inductive and capacitive circuit, power factor is, _____ (a) one (b) zero (c) infinity (d) 10
Why this question: AC Circuits → Power factor value in an AC circuit — appeared 2× Board 2024Board 2026
Q6.1 mark
The MI of ring of radius 'R' and mass 'M' about its central axis is _____ (a) 2 MR2 (b) MR2/2 (c) MR2 (d) (3/2) MR2
Why this question: Rotational Dynamics → MCQ: moment of inertia of a standard body — appeared 2× Board 2024Board 2026
Q7.1 mark
When n number of capacitors having each of capacity 'C' are connected in series, their equivalent capacity is (a) 1/C (b) nC (c) C/n (d) 1/(nC)
Why this question: Electrostatics → Numerical/formula: equivalent capacitance of capacitors in series — appeared 2× Board 2024Board 2026
Q8.1 mark
What is the coefficient of transmission for athermanous materials?
Why this question: Kinetic Theory of Gases and Radiation → Athermanous and diathermanous materials — appeared 2× Board 2025
Q9.1 mark
An electron, a proton, an alpha-particle and a hydrogen atom are moving with the same kinetic energy. The associated de-Broglie wavelength will be longest for - (a) proton (b) electron (c) hydrogen atom (d) alpha-particle
Why this question: Dual Nature of Radiation and Matter → MCQ: compare de Broglie wavelength of particles with same kinetic energy — appeared 2× Board 2024Board 2025
Q10.1 mark
When a number of droplets coalesce to form a single drop, the total surface area of the drop _____. (a) decreases (b) becomes zero (c) remains same (d) increases
Why this question: Mechanical Properties of Fluids → Numerical/MCQ: droplets coalescing into a single drop — appeared 2× Board 2022Board 2026
Q11.1 mark
What is magnetization?
Why this question: Magnetic Materials → Define magnetization, magnetic intensity, susceptibility and permeability — appeared 5× Board 2022Board 2023Board 2024Board 2025Board 2026
Q12.1 mark
Define mutual inductance.
Why this question: Electromagnetic Induction → Define self and mutual inductance — appeared 3× Board 2025Board 2026
Q13.1 mark
What is the mathematical formula for third postulate of Bohr's atomic model?
Why this question: Structure of Atoms and Nuclei → State postulates of Bohr's atomic model — appeared 3× Board 2022Board 2023Board 2026
Q14.1 mark
What is the resistance of an ideal voltmeter?
Why this question: Magnetic Fields due to Electric Current → State the resistance of an ideal voltmeter/ammeter — appeared 3× Board 2023Board 2024
Q15.1 mark
Write the differential equation for linear S.H.M.
Why this question: Oscillations → Write/obtain the differential equation of SHM — appeared 3× Board 2022Board 2024
Q16.1 mark
State the formula for electric field intensity due to uniformly charged spherical shell.
Why this question: Electrostatics → Electric field of a uniformly charged spherical shell — appeared 2× Board 2025Board 2026
Q17.1 mark
Write the mathematical formula for Bohr magneton for an electron revolving in nth orbit.
Why this question: Magnetic Materials → Orbital magnetic moment of a revolving electron — appeared 2× Board 2023Board 2026
Q18.1 mark
What do you mean by logic gate?
Why this question: Semiconductor Devices → Define logic gate — appeared 2× Board 2024Board 2025
Section BShort answer questions, 2 marks each (attempt any 8 of 12)
Q19.2 marks
For a thermodynamic system : Define : (a) Mechanical equilibrium (b) Chemical equilibrium
Why this question: Thermodynamics → Define types of thermodynamic equilibrium — appeared 4× Board 2022Board 2025Board 2026
Q20.2 marks
A galvanometer has a resistance of 100 ohm and its full scale deflection current is 0.2 mA, what resistance should be added to it to have a range of 0-10V?
Why this question: Magnetic Fields due to Electric Current → Numerical: resistance to convert a galvanometer into ammeter/voltmeter — appeared 4× Board 2024Board 2025Board 2026
Q21.2 marks
An alternating voltage source given by e = 140 sin(314.2 t) is connected across a pure resistor of 50 ohm. Determine : (i) Frequency of the source. (ii) RMS value of emf.
Why this question: AC Circuits → Numerical: quantities from an AC emf/voltage equation across a resistor — appeared 4× Board 2023Board 2024Board 2025Board 2026
Q22.2 marks
Obtain an expression for the maximum speed of a vehicle along horizontal circular curved road.
Why this question: Rotational Dynamics → Derive maximum safe speed of a vehicle on a banked/horizontal road — appeared 3× Board 2024Board 2026
Q23.2 marks
Explain the working of a transformer with a neat, labelled diagram.
Why this question: Electromagnetic Induction → Construction and working of a transformer — appeared 3× Board 2024Board 2026
Q24.2 marks
Distinguish between harmonics and overtones. [Any Two points]
Why this question: Superposition of Waves → Explain/distinguish harmonics and overtones — appeared 3× Board 2022Board 2025Board 2026
Q25.2 marks
Two tuning forks having frequencies 160 Hz and 170 Hz are sounded together to produce sound waves. The velocity of sound in air is 326.4 m/s. Calculate the difference between wavelengths of these waves.
Why this question: Superposition of Waves → Numerical: beats from two tuning forks — appeared 3× Board 2023Board 2024Board 2025
Q26.2 marks
Derive an expression for the magnetic field produced by a current in a circular arc of a wire using Biot-Savart law.
Why this question: Magnetic Fields due to Electric Current → Derive magnetic field at the centre of a circular arc (Biot-Savart) — appeared 2× Board 2025Board 2026
Section CShort answer questions, 3 marks each (attempt any 8 of 12)
Q27.3 marks
Calculate the shortest wavelength of Paschen series and the longest wavelength of Balmer series for hydrogen atom.
Why this question: Structure of Atoms and Nuclei → Numerical: shortest and longest wavelengths in a hydrogen spectral series — appeared 3× Board 2022Board 2025Board 2026
Q28.3 marks
Derive an expression for the impedance of a series LCR circuit connected to an AC power supply.
Why this question: AC Circuits → Derive expression for impedance of a series LCR circuit — appeared 3× Board 2024Board 2025
Q29.3 marks
What is an isothermal process? Obtain an expression for work done by a gas in an isothermal process.
Why this question: Thermodynamics → Derive work done in an isothermal process — appeared 3× Board 2023Board 2024Board 2025
Q30.3 marks
Define photoelectric effect and explain the experimental set-up of photoelectric effect.
Why this question: Dual Nature of Radiation and Matter → Describe experimental set-up of photoelectric effect — appeared 3× Board 2023Board 2024
Q31.3 marks
Define surface tension. Obtain the relation between surface tension and surface energy.
Why this question: Mechanical Properties of Fluids → Define surface tension/energy and derive their relation — appeared 3× Board 2023Board 2024
Q32.3 marks
What is interference of light? State any four conditions for obtaining well defined and steady interference pattern.
Why this question: Wave Optics → State conditions for a steady interference pattern — appeared 2× Board 2025Board 2026
Q33.3 marks
With a neat circuit diagram, explain the working of a full wave rectifier. Draw input-output waveforms.
Why this question: Semiconductor Devices → Full wave rectifier (circuit and working) — appeared 2× Board 2025Board 2026
Q34.3 marks
0.5 mole of an ideal gas at 300 K, expands isothermally from an initial volume of 2 L to a final volume of 6 L. Calculate : (a) work done by the gas (b) heat supplied to the gas [Given : R = 8.31 J mol-1 K-1]
Why this question: Thermodynamics → Numerical: work done by a gas in isothermal expansion — appeared 2× Board 2025Board 2026
Section DLong answer questions, 4 marks each (attempt any 3 of 5)
Q35.4 marks
Using analytical method, obtain an expression for the fringe width of two interfering waves.
Why this question: Wave Optics → Derive expression for fringe width in Young's double-slit experiment — appeared 2× Board 2024Board 2026
Q36.4 marks
Obtain an expression for magnetic induction of a toroid of N no. of turns about an axis passing through its centre and perpendicular to plane. [Second part:] A Carnot refrigerator operates between 150 K and 200 K, calculate its coefficient of performance.
Why this question: Magnetic Fields due to Electric Current → Derive magnetic induction of a toroid — appeared 2× Board 2023Board 2026
Q37.4 marks
State differential equation of linear S.H.M. hence obtain an expression for acceleration, velocity and displacement of a particle performing S.H.M.
Why this question: Oscillations → Derive acceleration, velocity and displacement in SHM — appeared 2× Board 2023Board 2026