ECAT Pre Computer Science Chapter 8 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 8 Waves

Try The MCQ's Test For ECAT Physics Chapter 8 Waves

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ECAT Physics Chapter 8 Waves

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Question # 1

Which of the following medium/media can transmit both transverse and longitudinal waves:

Question # 2

The vibratory or oscillatory motion of a body is

Question # 3

Time period of simple pendulum is independent of

Question # 4

An object undergoes S.H.M has maximum speed when its displacement from the mean position is

Question # 5

In the formula for finding the speed of waves in the spring, unit of m in SIn units is:

Question # 6

The wave motion set up in any medium depends upon:

Question # 7

Velocity of sound in a diatomic as is 300 m/sec. what is its rms velocity?

Question # 8

Which of the following changes at an antinode in a stationary wave?

Question # 9

The distance covered by the wave during one period is called its:

Question # 10

Mechanical waves on the surface of a liquid are

Question # 11

The expression for restoring force is

Question # 12

While describing the motion of a simple pendulum, the frictional effects are

Question # 13

When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be

Question # 14

A heavily damped system has a fairly

Question # 15

Which of the following does not exhibit S.H.M?

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 A body is executing free vibrations when it oscilates
A. with the interference of an external force
B. without the interference of an external force
C. with the interference of an internal force
D. none of them
2 Two sound waves of slightly different frequencies propagating in the same direction produce beats due to
A. Interference
B. Diffraction
C. Polarization
D. Refraction
3 Which one of the following wave motions is transverse:
A. Wave motion produced in water when a piece of stone is thrown into it
B. Pulling of weight hanging vertically with a spiral spring
C. Both of these
D. None of these
4 The frequency of free vibrations is known as
A. free frequency
B. forced frequency
C. natural frequency
D. un-natural frequency
5 The number of vibrating body at any instant from its equilibrium position is called
A. displacement
B. frequency
C. amplitude
D. time period
6 The vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called
A. rotatory motion
B. motion under gravity
C. angular motion
D. simple harmonic motion
7 While describing the motion of a simple pendulum, the frictional effects are
A. taken into account
B. completely ignored
C. partially ignored
D. none of them
8 The waves produced in a microwave oven have frequency
A. 2450 Hz
B. 2450 K Hz
C. 2450 M Hz
D. 2450 G Hz
9 SI unit of frequency is
A. second
B. hertz
C. revolution
D. vibrations/sec
10 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations

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