ECAT Pre General Science Physics Chapter 8 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 8 Waves

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ECAT Pre General Science Physics Chapter 8 Waves

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Question # 1

Shock absorber of the car is an example of

Question # 2

Acceleration of the mass at any instant is given by

Question # 3

There is no net transfer of energy by particle of medium in

Question # 4

Example of vibratory motion is

Question # 5

The waves moving from a sitar to a listener in air are

Question # 6

Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

When an oscillatory motion repeats itself, then this type of motion is called

Question # 11

The wave motion set up in any medium depends upon:

Question # 12

With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are

Question # 13

Energy is not carried by

Question # 14

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

Question # 15

In transverse waves, the individual particles of the medium move:

Question # 16

Crests and troughs are formed in:

Question # 17

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

Question # 18

The example of mechanical wave is

Question # 19

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

Question # 20

The vibratory or oscillatory motion of a body is

Question # 21

Example of progressive wave is

Question # 22

When the bob of simple pendulum is at extreme position, its K.E. will be

Question # 23

Which of the following is not mechanical wave?

Question # 24

Transverse waves can be set up:

Question # 25

Which one of the following could be the frequency of ultraviolet radiation?

Question # 26

SI unit of frequency is

Question # 27

Mechanical waves on the surface of a liquid are

Question # 28

The expression of Hook's law is

Question # 29

The bob of a simple pendulum is suspended by

Question # 30

When a wave is travels from one place to another, it transfers:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 When the bob of simple pendulum is at mean position, its K.E will be
A. maximum
B. minimum
C. zero
D. all of them
2 Si units of time period is
A. second
B. hertz
C. revolution
D. vibration/sec
3 The distance covered by the wave during one period is called its:
A. Wave number
B. Frequency
C. Wavelength
D. Time period
4 In the same medium, velocity of the wave:
A. Goes on increasing
B. Remains constant
C. Goes on decreasing
D. None of these
5 When sound waves travel from air to water which of these remains constant?
A. Velocity
B. Frequency
C. Wavelength
D. All the above
6 Smaller the damping, the resonance will be
A. more flat
B. more sharp
C. both of them
D. none of them
7 A physical system under going forced vibrations is known as
A. Simple harmonic oscillator
B. Compound harmonic oscillator
C. Physical harmonic oscillator
D. driven harmonic oscillator
8 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
9 SI unit of wave length is:
A. Kilometer
B. Metre
C. Centimetre
D. Hertz
10 In case of mechanical waves, we study the motion of
A. a single particle
B. collection of particle
C. any one of them
D. none of them

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