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 is the longitudinal waves?

Question # 2

If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be

Question # 3

Mechanical waves on the surface of a liquid are

Question # 4

Which one of the following is an example of resonance

Question # 5

If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get

Question # 6

The natural frequency of a pendulum which is vibrating freely, depends upon its

Question # 7

The restoring force always directed towards the

Question # 8

The wave motion set up in any medium depends upon:

Question # 9

The waves which propagate out in space due to oscillation of electric and magnetic fields are known as

Question # 10

If F=0.04 N and X=4 cm then K=

Question # 11

Shock absorber of the car is an example of

Question # 12

A heavily damped system has a fairly

Question # 13

Wave disturbances may also come in a concentrated bundle, like shock wave from an aeroplane flying at

Question # 14

Crests and troughs are formed in:

Question # 15

It is possible to recognize a person by hearing his voice even if he is hidden behind a solid wall. This is due to the fact that his voice

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 One complete round trip of the body about its mean position is called
A. displacement
B. vibration
C. a complete motion
D. an acceleration
2 The vibrations of factory floor caused by the running of heavy machinery is an example of
A. free vibration
B. natural vibrations
C. forced vibrations
D. all of them
3 The waves which propagate through the oscillations of material particles are known as:
A. Mechanical waves
B. Electromagnetic waves
C. Any of them
D. None of them
4 Example of vibratory motion is
A. mass suspended from a spring
B. a bob of simple pendulum
C. mass attached to a spring placed
D. all of them
5 Laplace formula is derived from
A. Isothermal change
B. Adiabatic change
C. Isobaric change
D. None of these
6 Wave disturbances may also come in a concentrated bundle, like shock wave from an aeroplane flying at
A. subsonic speed
B. sonic speed
C. super sonic speed
D. any one of them
7 A weakly damped system has fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
8 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
9 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave
10 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

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