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 distance covered by the wave in one second is:

Question # 2

A weakly damped system has fairly

Question # 3

The principle of superposition states that

Question # 4

Which of the following medium/media can transmit both transverse and longitudinal waves:

Question # 5

Which of the following is not mechanical wave?

Question # 6

The loudness and pitch of a sound note depends on

Question # 7

In stationary waves

Question # 8

In the same medium, velocity of the wave:

Question # 9

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

Question # 10

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

Question # 11

The frequency of free vibrations is known as

Question # 12

Which type of wave can be set up in solids

Question # 13

When a body is performing S.H.M., its acceleration is

Question # 14

Which one of the following elasticizes is possessed by fluids:

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Decibel is unit of
A. Intensity of light
B. x-ray radiation capacity
C. sound loudness
D. Energy of radiation
2 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
3 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
4 Such oscillations in which the amplitude decreases steadily with time, are called
A. resonance
B. force oscillations
C. large oscillations
D. damped oscillations
5 An object undergoes S.H.M has maximum acceleration when its displacement form the means position
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value
6 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
7 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
8 The instantaneous velocity of a body moving along a circle is directed
A. along the radius
B. along the tangent
C. away from the circle
D. none of them
9 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
10 A heavily damped system has a fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them

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