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

If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:

Question # 2

SI unit of frequency is

Question # 3

When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to

Question # 4

A wave, which transfer energy by moving away from the source of disturbance is called a

Question # 5

The wave motion set up in any medium depends upon:

Question # 6

The maximum displacement of a body on either side of its equilibrium position is called

Question # 7

Fidelity refers to

Question # 8

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

Question # 9

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

Question # 10

To hear a clear echo, the reflecting surface must be at a minimum distance of

Question # 11

In stationary waves

Question # 12

For transmission of both transverse and longitudinal waves, we can use:

Question # 13

In solids, only following type/s of wave can travel:

Question # 14

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

Question # 15

For production of beats the two sources must have

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
2 The portion of the water above its mean level forms a:
A. Crest
B. Trough
C. Both A and B
D. None of these
3 The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be
A. 1 : 2
B. 4 : 1
C. 1 : 4
D. 2 : 1
4 In compressional wave,the layer of medium having reduced pressure is called:
A. Compression
B. Elasticity
C. Node
D. Rarefaction
5 In the resonance condition, the amplitude of the oscillator becomes
A. very large
B. very small
C. zero
D. any one of them
6 Which of the following medium/media can transmit both transverse and longitudinal waves:
A. Solids
B. Liquids
C. Gases
D. All of them
7 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave
8 The temperature at which the speed of sound becomes double as was at 27°C is
A. 273°C
B. 0°C
C. 927°C
D. 1027°C
9 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
10 If F=0.04 N and X=4 cm then K=
A. 1 Nm-1
B. 2 Nm-1
C. 3 Nm-1
D. 4 Nm-1

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