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

Of the following, the option ______ reminds of longitudinal waves.

Question # 2

Which one of the following wave motions is transverse:

Question # 3

The resonance will be sharp, if the amplitude decreases rapidly at a frequency

Question # 4

One complete round trip of the body about its mean position is called

Question # 5

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

Question # 6

Longitudinal waves are also called:

Question # 7

When sound waves travel from air to water which of these remains constant?

Question # 8

The expression for restoring force is

Question # 9

As the bob of the pendulum moves to and fro which of the force is experienced by the bob

Question # 10

The frequency of free vibrations is known as

Question # 11

Smaller the damping, greater will be the

Question # 12

Time period of a simple pendulum depends upon the

Question # 13

In a resonance situation the amplitude of the motion may become extra ordinarily large, if

Question # 14

When a mass 'm' is pulled slowly through a distance 'xo' , the elastic potential energy of the spring would be

Question # 15

Which one of the following elasticizes is possessed by fluids:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The characteristic of a body executing S.H.M is that its acceleration is
A. inversely proportional to displacement
B. directly proportional to displacement
C. independent of displacement
D. equal to zero
2 In the resonance condition, the amplitude of the oscillator becomes
A. very large
B. very small
C. zero
D. any one of them
3 The wave motion set up in any medium depends upon:
A. Elasticity
B. Inertia
C. Density
D. All of these
4 When a wave is travels from one place to another, it transfers:
A. Matter
B. Energy
C. Momentum
D. Both B and C
5 Velocity of sound in vacuum (in m/s) is
A. 330
B. 1000
C. 156
D. 0
6 Ultra-violet rays differ from X-rays in that they
A. Cannot be diffracted
B. Cannot be polarized
C. Have a lower frequency
D. Are deviated when they pass through a magnetic field
7 The loudness and pitch of a sound note depends on
A. Intensity and velocity
B. Frequency and velocity
C. Intensity and frequency
D. Frequency and number of harmonic
8 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
9 In the formula for finding the speed of waves in the spring, unit of m in SIn units is:
A. kg
B. kg-meter
C. kg/meter
D. Meter/kg
10 A swing has
A. one natural frequency
B. two natural frequencies
C. three natural frequencies
D. four natural frequencies

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