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

Question # 2

Time period of simple pendulum is independent of

Question # 3

The speed of sound in a medium depends on

Question # 4

Time period of a simple pendulum depends upon the

Question # 5

Waves transport energy

Question # 6

The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

Question # 7

If the length of second pendulum becomes four times then its time period will become

Question # 8

Which of the following does not exhibit S.H.M?

Question # 9

Which waves are used in sonography?

Question # 10

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

Question # 11

A simple pendulum consists of a

Question # 12

In stationary waves

Question # 13

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

Question # 14

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

Question # 15

Shock absorber of the car is an example of

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Which of the following does not exhibit S.H.M?
A. a plucked violin string
B. a mass attached to a spring
C. a train shunting between two terminals
D. a simple pendulum
2 Crests and troughs are formed in:
A. Longitudinal waves
B. Transverse waves
C. Both of these
D. None of these
3 What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?
A. 1 MHz
B. 10 Hz
C. 1 GHz
D. 100000 Hz
4 A body is executing free vibrations when it oscilates
A. with the interference of an external force
B. without the interference of an external force
C. with the interference of an internal force
D. none of them
5 If a wave can be polarized, it must be
A. An electromagnetic wave
B. A longitudinal wave
C. A progressive wave
D. A transverse wave
6 SI unit of wave length is:
A. Kilometer
B. Metre
C. Centimetre
D. Hertz
7 The force which opposes the applied force producing the displacement in the spring is called
A. restoring force
B. periodic force
C. centripetal force
D. resistive force
8 The waves in which the particles of the medium have displacement along the direction of propagation of waves are called
A. longitudinal waves
B. transverse waves
C. non-mechanical waves
D. none of them
9 Which one is not produced by sound waves in air?
A. Polarization
B. Diffraction
C. Refraction
D. Reflection
10 Ultra-violet rays differ from X-rays in that they
A. Cannot be diffracted
B. Cannot be polarized
C. Have a lower frequency
D. Are deviated when they pass through a magnetic field

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