MH 12th Question Paper March 2026 Physics

FOR MAHARASHTRA BOARD (MSBSHSE) CLASS 12 EXAM PREPARATION

Maharashtra Board
(MSBSHSE) Class 12
2026
March Session
Question Paper ·
Physics
EXAM YEAR

Maharashtra Board (MSBSHSE) Class 12 2026
TYPE SUBJECT

March Session Question Paper Physics

Notes · Sample Papers · Previous Year Papers · Mock Tests

m
m .co

m .co s e m
se l a
SEAT NUMBER ag

DAY — 06 SEAT NUMBER

2026 II 16 1100 (E)
J-137 m
m .co
.co s e m
s em PHYSICS (54) l a
g la ag
a 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
m
.co
of questions carrying One mark each.

s em
Q. No. 2 contains Eight very short answer

g a
type of lquestions carrying One mark each.

(2) Section B :
a
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).
o m
m . c
m .co (4) Section D : Q. No. 27 to Q. No. 31 contain Five m
e long
s Four
s e l
answer type of questions carryinga
g la ag
marks each.(Attempt any Three).
a (5) Use of the log table is allowed. Use of calculator is not allowed.

(6) Figures to the right indicate full marks.

0 1 3 7 Page 1 P.T.O
m .
.co s e m
s em l a
g la ag
a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 1 of 8

(7) For multiple choice type of questions, only the first attempt

will be considered for evaluation.

(8) Physical constants : –

(i) h 6.63 10 34 Js

(ii) c 3 108 m / s
(iii) 3.142
(iv) g 9.8 m / s 2

(v) 0 8.85 10 12C 2 / Nm 2

(vi) 0 4 10 7Wb / A m

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

(i) 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

(ii) In an ideal gas, molecules possess _____.
(a) only kinetic energy
(b) both kinetic energy and potential energy
(c) only potential energy
(d) neither kinetic energy nor potential energy

(iii) If the frequency of incident radiation is increased above
threshold frequency, keeping intensity and potential
constant then the photoelectric current _____.
(a) decreases (b) becomes zero
(c) remains same (d) increases

0 1 3 7 Page 2

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 2 of 8

m
m .co

m .co s e m
se l a
SEAT NUMBER ag

(iv) The process in which heat is neither absorbed nor
released by a system is called _____.
(a) isobaric (b) isochoric
(c) isothermal (d) adiabatic
m
m .co
(v) The period of conical pendulum in terms of its length

.co
(l ) , semi-vertical angle ( ) and acceleration due to
s e m
s em gravity (g ) is _____.
l a
g la (a) 1 l cos 1 l sin ag
a 2 g
(b)
2 g

l cos l tan
(c) 4 (d) 4
4g g

(vi) A conducting rod of length , rotates about one of its
ends in a uniform magnetic field B, with a constant
angular velocity
o m. If the plane of rotation is
c
. induced between the ends
m
perpendicular to B, the e.m.f.
e
of rod is _____.
l as
1 2 ag
(a) B l (b) B l 2
2
(c) 2B l 2 (d) B l

(vii) A metal surface is illuminated by photons of energy
5 eV and 2.5 eV respectively. The ratio of their
wavelengths of emitted radiation is _____.
m
.co
(a) 1:4 (b) 1:2
m
m .co (c) 2:1 (d)
(viii) A particle is subjected to two parallel S.H.M.s as
4:1
e m
s e l such that

g la ag
a x 2sin t and y 2sin t
3
. The amplitude of

the resultant S.H.M. will be _____.
(a) 0 (b) 2 3
(c) 4 (d) 12

0 1 3 7 Page 3 P.T.O
m .
.co s e m
s em l a
g la ag
a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 3 of 8

(ix) A bar magnet of magnetic moment 10 Am2 has a cross-
sectional area of 2.5 × 10–4 m2. If the intensity of
magnetisation of magnet is 106 A/m, the length of the
bar magnet is _____.
(a) 2 cm (b) 4 cm
(c) 6 cm (d) 8 cm

(x) In series LCR circuit for X L X C , tan will be _____.
(a) negative (b) zero
(c) positive (d) infinity

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

(i) State the formula for electric field intensity due to
uniformly charged spherical shell.

(ii) Name an instrument for measurement of e.m.f. of a
cell.

(iii) Calculate the magnitude of force experienced by a
stationary charge exposed to uniform magnetic field.

(iv) Which property of bar magnet is used in navigation?

(v) In Young’s double slit experiment, width of the two slits
are in the ratio 25 : 1. Calculate the ratio of amplitudes.

(vi) What is beta plus decay?

(vii) If the tension in sonometer wire is increased by 21%,
compare the initial frequency with the later.

(viii) Define second’s pendulum.

0 1 3 7 Page 4

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 4 of 8

m
m .co

m .co s e m
se l a
SEAT NUMBER ag

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

Q. 3. What are Eddy currents? State its two applications.
m
Q. 4.
o m
State any two sources of error in meter bridge experiment.
c m .co
Explain.how they can be minimised. e
em l as
s
a a ray diagram showing position of virtual sources and
lDraw ag
Q. 5.
g
a region of interference in biprism experiment.
Q. 6. Derive an expression for radius of nth Bohr orbit.

Q. 7. A ceiling fan has moment of inertia of 2 kg m2. It attains
maximum frequency of 60 r.p.m. in 2 seconds. Calculate its

m
power rating.

c o
. charges of magnitude
Q. 8.
m
An electric dipole consists of two unlike
eby 4 cm. The dipole is placed in
2 × 10–6 C each and separated
l as
agof 105 N/C. Calculate the work done
an external electric field
by an external agent to turn the dipole through 180º.

Q. 9. Derive an expression for the magnetic field produced by a
current in a circular arc of a wire using Biot-Savart law.

Q. 10. State advantages and disadvantages of photodiode.
m
m .co
.co
Q. 11. Distinguish between harmonics and overtones.

m [Any Two points]
s em
s e g l a
g la Q. 12. a velocity of
A steel ball with radius 0.3 mm is falling with
a 2 m/s through a tube filled with glycerine. Calculate viscous
force acting on the steel ball.

[ Given : glycerine 0.833 Ns / m2 ]

0 1 3 7 Page 5 P.T.O
m .
.co s e m
s em l a
g la ag
a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 5 of 8

Q. 13. Calculate the temperature at which the average kinetic energy
of a molecule of a gas will be same as that of an electron
accelerated through 1 volt.
[ Given: kB = 1.4 × 10–23 J/k, e = 1.6 × 10–19C ]

Q. 14. An inductor of inductance 200 mH is connected to an A.C.
source of peak e.m.f. 220 V and frequency 50 Hz. Calculate
the peak current in the circuit.

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

Q. 15. In thermodynamics, define :
(a) Mechanical equilibrium
(b) Chemical equilibrium
(c) Thermal equilibrium

Q. 16. Derive an expression for resonant frequency of series resonant
circuit.

Q. 17. Obtain an expression for period of a bar magnet vibrating in
a uniform magnetic field and performing angular S.H.M.

Q. 18. Define magnetization. State its S.I. unit and dimensions.
What is the relation between permeability and magnetic
susceptibility?

Q. 19. Derive an expression for electric potential due to a point charge.

Q. 20. Obtain an expression for the de-Broglie wavelength associated
with an electron accelerated from rest through a potential
difference of ‘V’ volts.

0 1 3 7 Page 6

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 6 of 8

m
m .co

m .co s e m
se l a
SEAT NUMBER ag

Q. 21. With a neat circuit diagram, explain the working of a full wave
rectifier. Draw input–output waveforms.

Q. 22. The string of a guitar is 80 cm long and has a fundamental
frequency of 112 Hz. If a guitarist wishes to produce a
m
m .co
.co m
frequency of 160 Hz, where should he press the string?
s e
s em l a
ag
Q. 23. 0.5 mole of an ideal gas at 300 K, expands isothermally from

g lana initial volume of 2 L to a final volume of 6 L.
a
Calculate :
(a) work done by the gas
(b) heat supplied to the gas
[ Given : R = 8.31 J mol–1 K–1 ]

A galvanometer has a resistance of 40
o m and a current of 4 mA
c
Q. 24.
is needed for full scale deflection.. What is the resistance and
e m
s
how is it to be connected toaconvert the galvanometer
gl
(a) into an ammeteraof 0.4 A range and
(b) into a voltmeter of 5 V range?

Q. 25. A coaxial cable consists of a central conducting core wire of
radius ‘a’ and a coaxial cylindrical outer conductor of radius
‘b’. The two conductors carry equal current in opposite

o m
m
directions, in and out of the plane of the paper. What will be
. c
m .co the magnitude of magnetic induction B for (i) a r bm
s e and

s e (ii) b r ? What will be its direction? l a
g la ag
where ‘r’ is the radius of the Ampere’s circular loop.
a
Q. 26. Energy of an electron in second Bohr orbit is –3.4 eV. Calculate
its kinetic energy and potential energy in third Bohr orbit.

0 1 3 7 Page 7 P.T.O
m .
.co s e m
s em l a
g la ag
a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 7 of 8

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

Q. 27. Derive Laplace’s law for spherical membrane of bubble due to
surface tension.

Q. 28. Obtain an expression for maximum safety speed with which a
vehicle should move along a curved horizontal road.

Moment of intertia of a solid sphere about its diameter is
25 kg m2. Calculate its moment of inertia about a tangent.

Q. 29. Derive the relation between coefficient of absorption, coefficient
of reflection and coefficient of transmission.

Compare the r.m.s. speed of hydrogen molecule at 127ºC with
r.m.s. speed of oxygen molecule at 27ºC, given that molecular
masses of hydrogen and oxygen are 2 and 32 respectively.

Q. 30. Define :
(i) Self inductance
(ii) Mutual inductance

A conducting loop of area 1m2 is placed normal to a uniform
magnetic field of 3 Wb/m2. If the magnetic field is uniformly
reduced to 1 Wb/m2 in 0.5 second, calculate the induced e.m.f.
produced in the coil.

Q. 31. Using analytical method, obtain an expression for the fringe
width of two interfering waves.

0 1 3 7 Page 8

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 8 of 8