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

The velocity of sound in air depends upon

Question # 2

The wave motion set up in any medium depends upon:

Question # 3

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

Question # 4

For production of beats the two sources must have

Question # 5

The temperature at which the speed of sound becomes double as was at 27°C is

Question # 6

Shock absorber of the car is an example of

Question # 7

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

Question # 8

The waves in which the particles of the medium have displacement along the direction of propagation of waves are called

Question # 9

Angular frequency 'w' is basically a characteristics of

Question # 10

A second's pendulum is a pendulum whose time period is

Question # 11

Transverse waves can be set up:

Question # 12

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

Question # 13

The velocity of sound at same temperature is maximum in

Question # 14

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

Question # 15

The wave form of S.H.M will be

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Which waves are used in sonography?
A. Microwaves
B. Infra red waved
C. Sound waves
D. Ultrasonic waves
2 With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are
A. Energy, momentum and mass
B. Energy
C. Energy and mass
D. Energy and linear momentum
3 The weight 'mg' of the bob is resolved into
A. one component
B. two components
C. three components
D. four components
4 Data transmitted along glass-fiber cables is in the form of pulses of monochromatic red light each of duration 2.5 ns. Which of the following is the best estimate of the number of wavelength in each pulse?
A. 103
B. 106
C. 109
D. 1012
5 A swing has
A. one natural frequency
B. two natural frequencies
C. three natural frequencies
D. four natural frequencies
6 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
7 When a body moves to and fro motion, this type of motion is called
A. translatory motion
B. circular motion
C. oscillatory motion
D. all of them
8 Which of the following medium/media can transmit both transverse and longitudinal waves:
A. Solids
B. Liquids
C. Gases
D. All of them
9 The velocity of sound at same temperature is maximum in
A. H2
B. N2
C. O2
D. NH3
10 Smaller the damping, the resonance will be
A. more flat
B. more sharp
C. both of them
D. none of them

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