ECAT Pre General Science Physics Chapter 8 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 8 Waves

Try The 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

Waves transport energy

Question # 2

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

Question # 3

The wave form of S.H.M will be

Question # 4

The restoring force always directed towards the

Question # 5

The waves produced in a microwave oven have frequency

Question # 6

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

Question # 7

The loudness and pitch of a sound note depends on

Question # 8

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

Question # 9

For production of beats the two sources must have

Question # 10

A second's pendulum is a pendulum whose time period is

Question # 11

The vibratory or oscillatory motion of a body is

Question # 12

Which one of the following elasticizes is possessed by fluids:

Question # 13

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 # 14

The waves produced in a microwave oven have wavelength.

Question # 15

When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be

Question # 16

Fluids can transmit:

Question # 17

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

Question # 18

A body is executing free vibrations when it oscilates

Question # 19

The speed of sound in a medium depends on

Question # 20

Time period of a simple pendulum depends upon the

Question # 21

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

Question # 22

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

Question # 23

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

Question # 24

The bob of a simple pendulum is suspended by

Question # 25

Smaller the damping, the resonance will be

Question # 26

The velocity of sound in air not effected by changes in

Question # 27

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

Question # 28

Longitudinal waves are also called:

Question # 29

An object undergoes S.H.M has maximum acceleration when its displacement form the means position

Question # 30

When a body moves to and fro motion, this type of motion is called

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:
A. Stationary waves
B. Transverse waves
C. Both of these
D. None of these
2 In case of mechanical waves, we study the motion of
A. a single particle
B. collection of particle
C. any one of them
D. none of them
3 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
4 The bob of a simple pendulum is suspended by
A. string
B. heavy inextensible string
C. light extensible string
D. light inextensible string
5 The characteristic of a body executing S.H.M is that its acceleration is
A. inversely proportional to displacement
B. directly proportional to displacement
C. independent of displacement
D. equal to zero
6 SI unit of wave length is:
A. Kilometer
B. Metre
C. Centimetre
D. Hertz
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 The restoring force always directed towards the
A. extreme position
B. mean position
C. both of them
D. none of them
9 To hear a clear echo, the reflecting surface must be at a minimum distance of
A. 10 m
B. 16.5 m
C. 33 m
D. 66 m
10 Velocity of sound in vacuum (in m/s) is
A. 330
B. 1000
C. 156
D. 0

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