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

Two sources of sound are said to be coherent if

Question # 2

When two progressive waves of nearly same frequencies superimpose and give rise to beats, then

Question # 3

The natural frequency of a pendulum which is vibrating freely, depends upon its

Question # 4

The portion of the water above its mean level forms a:

Question # 5

Fidelity refers to

Question # 6

The distance covered by the wave during one period is called its:

Question # 7

Which one of the following is an example of resonance

Question # 8

The damping depends upon the

Question # 9

At 'resonance' the transfer of energy from deriving source to the oscillator is

Question # 10

Which one of the following wave motions is transverse:

Question # 11

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

Question # 12

Energy is not carried by

Question # 13

transverse wave motion is possible in:

Question # 14

Which of the following is not mechanical wave?

Question # 15

In the same medium, velocity of the wave:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Waves transport energy
A. without transport energy
B. with matter
C. both of them
D. none of them
2 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
3 The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as
A. longitudinal waves
B. transverse waves
C. non-mechanical waves
D. none of them
4 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
A. Has a definite pitch
B. Has a definite quality
C. Has a definite capacity
D. Can penetrate the wall
5 Which type of wave can be set up in solids
A. longitudinal waves
B. transverse waves
C. both of them
D. none of them
6 The frequency of free vibrations is known as
A. free frequency
B. forced frequency
C. natural frequency
D. un-natural frequency
7 If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be
A. Increasing by a factor of 2
B. Decreasing by a factor of 2
C. Decreasing by a factor of 4
D. Unchanged
8 The total energy of spring mass system is
A. zero
B. changing with time
C. constant
D. none of them
9 A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is
A. 2 m
B. 1 m
C. 0.5 m
D. 4 m
10 The velocity of sound in air depends upon
A. Density and elasticity of gas
B. Pressure
C. Wavelength
D. Amplitude and frequency of sound

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