MH 12th Question Paper 2025 Physics

Maharashtra Board

Question Paper
2025
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SSC | HSC
QUESTION PAPER
Presented By

DAY — 06 SEAT NUMBER

2025 II 17 1100 (E)
J-287
PHYSICS (54)

Time : 3 Hrs. ( 8 Pages ) Max. Marks : 70

General Instructions :
The question paper is divided into four sections :

(1) Section A : Q. No. 1 contains Ten multiple choice type
of questions carrying One mark each.

Q. No. 2 contains Eight very short answer
type of questions carrying One mark each.

(2) Section B : Q. No. 3 to Q. No. 14 contain Twelve short
answer type of questions carrying Two marks
each. (Attempt any Eight).

(3) Section C : Q. No. 15 to Q. No. 26 contain Twelve short
answer type of questions carrying Three
marks each. (Attempt any Eight).

(4) Section D : Q. No. 27 to Q. No. 31 contain Five long
answer type of questions carrying Four
marks each.(Attempt any Three).

(5) Use of the log table is allowed. Use of calculator is not allowed.

(6) Figures to the right indicate full marks.

(7) For multiple choice type questions, only the first attempt will
be considered for evaluation.

0 2 8 7 Page 1 P.T.O

(8) Physical Constants :

(i) h = 6.63 × 10–34 Js

(ii) c = 3 × 108 m/s

(iii) S = 3.142

(iv) g = 9.8 m/s2

(v) H0= 8.85 × 10–12 C2/Nm2

(vi) µ0 = 4S ×10–7 Wb/A-m

(vii) V = 5.67 × 10–8 W/m2K4

(viii) 1 atm = 1.013 × 105 N/m2

(ix) R = 8.319 J/mol–k

SECTION – A

Q. 1. Select and write the correct answers for the following
multiple choice type of questions : [10]

(i) “If two systems are each in thermal equilibrium with
a third system, they are also in thermal equilibrium
with each other.” This statement refers to :
(a) zeroth law of thermodynamics
(b) first law of thermodynamics
(c) second law of thermodynamics
(d) Carnot’s law

(ii) In Bernoulli’s theorem, which of the following is
constant?
(a) Linear momentum (b) Angular momentum
(c) Mass (d) Energy

0 2 8 7 Page 2

(iii) Which of the following materials belongs to
diathermanous substance?
(a) wood (b) iron
(c) glass (d) copper

(iv) Electric potential ‘V’ at a distance ‘r’ from a point
charge is directly proportional to _____.
(a) r (b) r2
1 1
(c) (d)
r r2
(v) Which of the following equations gives correct
expression for the internal resistance of a cell by using
potentiometer?

(a) (b)

(c) (d)

(vi) An electron, a proton, an D-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) D-particle

(vii) The gate which produces high output, when its both

inputs are high is –

(a) X-OR gate (b) AND gate

(c) NAND gate (d) NOR gate

0 2 8 7 Page 3 P.T.O

(viii) The power rating of a ceiling fan rotating with a

constant torque of 2 Nm with an angular speed of 2S

rad/s will be _____.

(a) S W (b) 2S W
(c) 3S W (d) 4S W

(ix) A string of length 2 m is vibrating with 2 loops. The
distance between its node and adjacent antinode is
_____.
(a) 0.5 m (b) 1.0 m
(c) 1.5 m (d) 2.0 m

(x) A transformer increases an alternating e.m.f. from
220V to 880V. If primary coil has 1000 turns, the
number of turns in the secondary coil are _____.
(a) 1000 (b) 2000
(c) 3000 (d) 4000

Q. 2. Answer the following questions : [8]

(i) At what temperature the surface tension of a liquid
becomes zero?

(ii) Define self inductance.

(iii) What is the work done by an external uniform
magnetic field perpendicular to the velocity of a moving
charge?

(iv) What do you mean by a thermodynamic system?

(v) What is value of B called, when H = 0 is in the
hysteresis loop?

0 2 8 7 Page 4

(vi) State the formula for angle of banking.

(vii) Calculate the electric field intensity at a point just near
the surface of a charged plane sheet, measured from
its mid-point.

[ V = 8.85 µC/m2 ]

(viii) Find kinetic energy of 1 litre of an ideal gas at S.T.P.

SECTION – B
Attempt any EIGHT questions of the following : [16]

Q. 3. Explain harmonics and overtones.

Q. 4. Using Newton’s law of viscosity for streamline flow, derive an
expression for coefficient of viscosity.

Q. 5. State the formula for magnetic induction produced by a
current in a circular arc of a wire. Hence find the magnetic
induction at the centre of a current carrying circular loop.

Q. 6. State and prove the law of conservation of angular momentum.

Q. 7. State any four advantages of light emitting diode (LED).

Q. 8. Calculate the energy radiated in one minute by a perfectly
black body of surface area 200 cm2 when it is maintained at
127ºC.

Q. 9. Two coils having self inductances 60 mH each, are coupled with
each other. If the coefficient of coupling is 0.75, calculate the
mutual inductance between them.

0 2 8 7 Page 5 P.T.O

Q. 10. In a series LCR circuit, if resistance, inductive reactance and
capacitive reactance are 3:, 8: and 4: respectively, calculate
phase difference between voltage and current.

Q. 11. State the advantages of a potentiometer over a voltmeter.

Q. 12. Draw a neat and labelled circuit diagram for a full wave
rectifier.

Q. 13. A body of mass 0.8 kg performs linear S.H.M. It experiences a
restoring force of 0.4N, when its displacement from mean
position is 4 cm. Determine Force constant and Period of S.H.M.

Q. 14. A gas of 0.5 mole at 300 K expands isothermally from an initial
volume of 2.0 litre to a final volume of 6.0 litre. What is the
work done by gas?

SECTION – C
Attempt any EIGHT questions of the following : [24]

Q. 15. Obtain an expression for the period of a bar magnet vibrating
in a uniform magnetic field, performing S.H.M.

Q. 16. In a thermodynamic system, define –
(a) Mechanical equilibrium
(b) Chemical equilibrium and
(c) Thermal equilibrium

Q. 17. What is Brewster’s law? Derive the formula for Brewster’s
angle.

Q. 18. Derive an expression for law of radioactive decay. Define one
becquerel (Bq).

0 2 8 7 Page 6

Q. 19. State and prove Kirchhoff ’s law of heat radiation.

Q. 20. Obtain an expression for practical determination of end
correction –
(i) for a pipe open at both ends and
(ii) for a pipe closed at one end.

Q. 21. A conducting bar is rotating with constant angular speed
around a pivot at one end in a uniform magnetic field
perpendicular to its plane of rotation. Obtain an expression
for the rotational e.m.f. induced between the ends of the bar.

Q. 22. An electron in hydrogen atom stays in its second orbit for
10–8 s. How many revolutions will it make around the nucleus
in that time?
[ Given : e = 1.6 × 10–19 C, m = 9.1 × 10–31 kg ]

Q. 23. A flywheel of a motor has mass 100 kg and radius 1.5 m. The
motor develops a constant torque of 2000 Nm. The flywheel
starts rotating from rest. Calculate the work done during the
first 4 revolutions.

Q. 24. A galvanometer has a resistance of 50 : and a current of
2 mA is needed for its full scale deflection. Calculate resistance
required to convert it,
(i) into an ammeter of 0.5 A range.
(ii) into a voltmeter of 10 V range.

Q. 25. Diameter of a water drop is 0.6 mm. Calculate the pressure
inside a liquid drop.
(T = 72 dyne/cm, atmospheric pressure = 1.013 × 105 N/m2 )

0 2 8 7 Page 7 P.T.O

Q. 26. A solenoid of length Sm and 5 cm in diameter has a winding
of 1000 turns and carries a current of 5A. Calculate the
magnetic field at its centre along the axis.

SECTION – D
Attempt any THREE questions of the following : [12]

Q. 27. What is Ferromagnetism? Explain it on the basis of domain
theory.

Q. 28. Obtain an expression for average power dissipated in a series
LCR circuit.

Q. 29. Distinguish between interference and diffraction of light.
A double slit arrangement produces interference fringes for
sodium light of wavelength 589 nm, that are 0.20 degree apart.
What is the angular fringe separation if the entire
arrangement is immersed in water?
( R.I. of water = 1.33 )

Q. 30. State Einstein’s photoelectric equation and mention physical
significance of each term involved in it.
The wavelength of incident light is 4000Å. Calculate the
energy of incident photon.

Q. 31. State any four uses of Van de Graaff generator.
In a parallel plate air capacitor, intensity of electric field is
changing at the rate of 2 × 1011 V/ms. If area of each plate is
20 cm2, calculate the displacement current.

‹‹‹

0 2 8 7 Page 8

DAY — 06 SEAT NUMBER

2025 II 17 1100 (M)
J-288
PHYSICS (54)

Time : 3 Hrs. ( 8 Pages ) Max. Marks : 70

(1)

(2)

(3)

(4)

(5)

(6)

0 2 8 8 Page 1 P.T.O

(7)

(8) (Physical Constants) :
(i) h = 6.63 × 10–34 Js
(ii) c = 3 × 108 m/s
(iii)
(iv) g = 9.8 m/s2

(v) –12 2 2
ε 0 = 8.85 ×10 C /Nm

(vi) –7
0 = 4 ×10 Wb/A – m
–8 2 4
(vii) 5.67 ×10 W/m K
(viii) 1 atm = 1.013 × 105 N/m2
(ix) R = 8.319 J/mol–k

(i) (systems)

(ii)

0 2 8 8 Page 2

(iii) (diathermanous)

(iv) ‘r’ ‘V’,

r r2
1 1
r r2

(v)

(vi) D

(de-Broglie wavelength)

D

(vii) (Gate) (input) (output)

X-OR AND
NAND NOR

0 2 8 8 Page 3 P.T.O

(viii) (torque) 2Nm 2S rad/s
(rotating) (power rating)

SW 2S W
3S W 4S W

(ix) 2m (loops)
(node) (adjacent antinode)

0.5 m 1.0 m
1.5 m 2.0 m

(x) (transformer) 220V (alternating
emf ) 880V 1000

1000 2000
3000 4000

(i) (surface tension)

(ii) (self induction)

(iii) (velocity of moving charge)

(iv) (thermodynamic system)

(v) (hystersis) H=0 B

(vi) (angle of banking)

0 2 8 8 Page 4

(vii)
(electric field intensity)
[ V = 8.85 µC/m2 ]

(viii)
(S.T.P)

(harmonics and overtones)

(coefficient of viscosity)

. (circular arc)
(magnetic induction)

(Law of conservation of angular
momentum)

(LED)

127°C 200 cm2 (perfectly
black body)

60mH
(coupling coefficient) 0.75
(mutual inductance)

0 2 8 8 Page 5 P.T.O

LCR (resistance), (inductive
reactance) (capacitive reactance) 3:, 8:
4: (phase
difference)

(potentiometer)

(full wave rectifier)

0.8 kg
4 cm 0.4 N (restoring force)
(force constant)
(period of SHM).

0.5 2.0
6.0

(a)

(b)

(c)

0 2 8 8 Page 6

(Brewster’s law)

[one
becquerel (Bq)]

(end correction)
(i)
(ii)

(rotating)
(rotational e.m.f.)

10–8s

e = 1.6 × 10–19 C, m = 9.1 × 10–31 kg )

100 kg 1.5 m
2000 Nm (torque)

50: (full scale
deflection) 2 mA

(i) 0.5 A (ammeter)
(ii) 10 V (voltmeter)

0.6 mm
(T = 72 dyne/cm, (atmospheric pressure) = 1.013 ×
105 N/m2)

0 2 8 8 Page 7 P.T.O

Sm 5 cm 1000
5A

(Ferromagnetism)
(domain theory)

LCR
(average power)

. (interference and diffraction)

589 nm
0.20 degree

(R.I.of water) = 1.33)

.
(physical significance)

4000Å

.
(air) 2 × 1011 V/ms
20 cm2
(displacement current)

‹‹‹

0 2 8 8 Page 8

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