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REPEATER 2024 Physics - REPEATER 2024

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

Question types

REPEATER 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

REPEATER 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
When an air column in a pipe closed at one end vibrates such that two nodes are formed in it, the frequency of its vibration is_________.
  • A
    two times the fundamental frequency
  • ✓
    three times the fundamental frequency
  • C
    four times the fundamental frequency
  • D
    five times the fundamental frequency

Answer: B.

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Q 2M.C.Q (1 Marks)1 Mark
In a serics LCR circuit the phase difference between the voltage and the current is 45". Then the power factor will be _________.
  • A
    0.6071
  • ✓
    0.7071
  • C
    0.8081
  • D
    1.0

Answer: B.

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Q 5M.C.Q (1 Marks)1 Mark
Cyclotron is used to accelerate_________.
  • A
    neutral particles
  • B
    negatively charged particles
  • ✓
    positively charged particles
  • D
    all types of particles

Answer: C.

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Q 12Short Answer Type Question2 Marks
A bar magnet of moment of inertia of $500 gcm ^2$ oscillates with a time period of 3.142 seconds in a horizontal plane. What is its magnetic moment if the horizontal component of earth's magnetic field is $4 \times 10^{-5} T$ ?
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Q 14Short Answer Type Question2 Marks
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?
[Velocity of electron in second orbit $=1.07 \times 10^6 m / s$, radius of electron in second orbit $\left.=2.14 \times 10^{-10} m\right]$
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Q 19Answer the following in Brief3 Marks
A search coil having 2000 turns with area $1.5 cm^2$ is placed in a magnetic field of 0.6 T . The coil is moved rapidly out of the field in a time of 0.2 second. Calculate the induced emf across the search coil?
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Q 20Answer the following in Brief3 Marks
A spherical drop of oil falls at a constant speed of $9.8 cm / s$ in steady air. Calculate the radius of the drop. The density of oil is $0.9013 g / cm ^3$, density of air is $0.0013 g / cm ^3$ and the coefficient of viscosity of air is $1.8 \times 10^{-4}$ poise.
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Q 21Answer the following in Detail4 Marks
Derive the fiornsila for Aruwster's afyle.
Green light of wuelengths $100 A$ from a narrow sht is incident on a doubile dit. If the overall separation of $10$ fringes on a screen $2$ waway is $2 \ cm$ Find the slit separation.
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Q 23Answer the following in Detail4 Marks
Deduce an expression for molar specific heat of a monoatomic gas at constant volume.
Find kinetic energy of $4000 cc$ of a gas at $\text{S.T.P.}$
$[$Given: Standard pressure is $1.013 \times 10^5 N / m ^7 ]$
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Q 25Answer the following in Detail4 Marks
Derive an expression for minimum speed to perform stunts in well of death.
Part of a racing track is to be designed for a radius of curvature of $288 m$. We are not recommending the vehicles to drive faster than $216 \ km/hr$. With what angle should the road be tilted?
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