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

Of the following, the option ______ reminds of longitudinal waves.

Question # 2

A wave, which transfer energy by moving away from the source of disturbance is called a

Question # 3

Which of the following is the longitudinal waves?

Question # 4

Sound waves in air always

Question # 5

A simple pendulum consists of a

Question # 6

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

Question # 7

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

Question # 8

A body is executing free vibrations when it oscilates

Question # 9

It two waves of amplitude 'a' produce a resultant wave of amplitude a, then the phase difference between them will be

Question # 10

Example of vibratory motion is

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

The instantaneous velocity of a body moving along a circle is directed

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Time period of simple pendulum is independent of
A. length
B. mass
C. acceleration due to gravity
D. none of them
2 SI unit of wave length is:
A. Kilometer
B. Metre
C. Centimetre
D. Hertz
3 The restoring force always directed towards the
A. extreme position
B. mean position
C. both of them
D. none of them
4 Smaller the damping, the resonance will be
A. more flat
B. more sharp
C. both of them
D. none of them
5 The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be
A. 1 : 2
B. 4 : 1
C. 1 : 4
D. 2 : 1
6 Wave disturbances may also come in a concentrated bundle, like shock wave from an aeroplane flying at
A. subsonic speed
B. sonic speed
C. super sonic speed
D. any one of them
7 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
8 Which waves are used in sonography?
A. Microwaves
B. Infra red waved
C. Sound waves
D. Ultrasonic waves
9 As the bob of the pendulum moves to and fro which of the force is experienced by the bob
A. its weight
B. tension in the string
C. viscous drag force by air
D. all of them
10 A swing has
A. one natural frequency
B. two natural frequencies
C. three natural frequencies
D. four natural frequencies

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