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MARCH 2024 Physics - MARCH 2024

Maharashtra Board - STD 12 Science - Physics (MSBSHSE - English Medium). 47 questions in this chapter.

Question types

MARCH 2024 question types

47 questions across 5 question groups — pick any mix to generate a Physics paper with step-by-step answer keys.

47
Questions
5
Question groups
5
Question types
Sample Questions

MARCH 2024 questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark
In biprism experiment, the distance of 20th bright band from the central bright band is 1.2 cm. Without changing the experimental set-up, the distance of 30 bright band from the central bright band will be ______.
  • A
    0.6 cm
  • B
    0.8 cm
  • C
    1.2 cm
  • D
    1.8 cm
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Q 2M.C.Q (1 Marks)1 Mark
The velocity of bob of a second’s pendulum when it is 6 cm from its mean position and amplitude of 10 cm, is ______.
  • A
    $8 \pi cm / s$
  • B
    $6 \pi cm / s$
  • C
    $4 \pi cm / s$
  • D
    $2 \pi cm / s$
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Q 3M.C.Q (1 Marks)1 Mark
The current in a coil changes from 50A to 10A in 0.1 second. The self inductance of the coil is 20H. The induced e.m.f. in the coil is ______.
  • A
    800V
  • B
    6000V
  • C
    7000V
  • D
    8000V
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Q 4M.C.Q (1 Marks)1 Mark
In a cyclic process, if $\triangle U=$ internal energy, $W=$ work done, $Q=$ Heat supplied then ______.
  • A
    $\triangle U=Q$
  • B
    $Q =0$
  • C
    $W=0$
  • D
    $W = Q$
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Q 5M.C.Q (1 Marks)1 Mark
If the frequency of incident light falling on a photosensitive material is doubled, then the kinetic energy of the emitted photoelectron will be $........$
  • A
    same as its initial value
  • B
    two times its initial value
  • ✓
    more than two times its initial value
  • D
    less than two times its initial value

Answer: C.

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Q 12Short Answer Type Question2 Marks
Two tuning forks having frequencies $320 Hz$ and $340 Hz$ are sounded together to produce sound waves. The velocity of sound in air is $340 \ m/s.$ Find the difference in wavelength of these waves.
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Q 13Short Answer Type Question2 Marks
A horizontal force of $0.5N$ is required to move a metal plate of area $10^{-2} m^2$. with a velocity of $3\times 10^{-2}m/s,$ when it rests on $0.5\times 10^{-3} m$ thick layer of glycerin. Find the coefficient of viscosity of glycerin.
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Q 15Short Answer Type Question2 Marks
An aircraft of wing span of $60 m$ flies horizontally in earth’s magnetic field of $6 \times 10^{-5}T$ at a speed of $500 \ m/s$. Calculate the e.m.f. induced between the tips of the wings of the aircraft.
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Q 19Answer the following in Brief3 Marks
A current carrying toroid winding is internally filled with lithium having susceptibility $x = 2.1 \times 10^{−5}.$ What is the percentage increase in the magnetic field in the presence of lithium over that without it?
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Q 21Answer the following in Detail4 Marks
Derive an expression for energy stored in a charged capacitor.
A spherical metal ball of radius $15 \ cm$ carries a charge of $2 \mu C$. Calculate the electric field at a distance of $20 \ cm$ from the center of the sphere.
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Q 22Answer the following in Detail4 Marks
Draw a neat labelled diagram of Ferry's perfectly black body. Compare the rms speed of hydrogen molecules at $227^{\circ} C$ with rms speed of oxygen molecule at $127^{\circ} C$. Given that molecular masses of hydrogen and oxygen are 2 and 32 respectively.
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Q 23Answer the following in Detail4 Marks
Distinguish between an ammeter and a voltmeter. $($Two points each $).$
The displacement of a particle performing simple harmonic
motion is $\frac{1}{3}rd$ of its amplitude. What fraction of total energy will be its kinetic energy?
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