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

If a wave can be polarized, it must be

Question # 2

Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:

Question # 3

Time period of simple pendulum is independent of

Question # 4

The expression of Hook's law is

Question # 5

Which of the following is an example of a S.H.M?

Question # 6

The velocity of sound is greatest in

Question # 7

The example of mechanical wave is

Question # 8

The waves which propagate through the oscillations of material particles are known as:

Question # 9

Example of vibratory motion is

Question # 10

For production of beats the two sources must have

Question # 11

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

Question # 12

transverse wave motion is possible in:

Question # 13

Transverse waves can be set up:

Question # 14

In case of mechanical waves, we study the motion of

Question # 15

Fidelity refers to

Question # 16

A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is

Question # 17

If we increase the length of a simple pendulum four times, its time period will become

Question # 18

The waves which propagate by the collision of material particles are known as

Question # 19

The waves produced in a microwave oven have wavelength.

Question # 20

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

Question # 21

Shock absorber of the car is an example of

Question # 22

Mechanical waves on the surface of a liquid are

Question # 23

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

Question # 24

The phase determines the

Question # 25

A simple pendulum consists of a

Question # 26

The characteristic of a body executing S.H.M is that its acceleration is

Question # 27

When two waves with same frequency and constant phase difference phase difference interfere

Question # 28

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

Question # 29

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

Question # 30

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

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ECAT Chapter 8 Important MCQ's

Sr.# Question Answer
1 The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:
A. Mechanical waves
B. Electromagnetic waves
C. Matter waves
D. All of them
2 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
3 Two sources of sound are said to be coherent if
A. The produce sounds of equal intensity
B. They produce sounds of equal frequency
C. They produce sound waves vibrating with the same phase
D. They produce sound waves with zero or constant phase difference all instant of time
4 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
5 A simple pendulum consists of a
A. small light bob
B. small heavy bob
C. big light bob
D. big heavy bob
6 Example of progressive wave is
A. transverse waves
B. longitudinal waves
C. both of them
D. none of them
7 Time period of a simple pendulum depends upon the
A. length of the pendulum
B. acceleration due to gravity
C. none of them
D. both of them
8 A second's pendulum is a pendulum whose time period is
A. 1 second
B. 2 seconds
C. 3 seconds
D. 4 seconds
9 Which one of the following could be the frequency of ultraviolet radiation?
A. 1.0 x 106Hz
B. 1.0 x 109Hz
C. 1.0 x 1012Hz
D. 1.0 x 1015Hz
10 When the bob of simple pendulum is at extreme position, its K.E. will be
A. maximum
B. minimum
C. zero
D. all of them

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