ECAT Pre General Science Physics Chapter 8 MCQ Test With Answer

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

Which one of the following elasticizes is possessed by fluids:

Question # 2

Acceleration of the mass at any instant is given by

Question # 3

Velocity of sound in vacuum (in m/s) is

Question # 4

The loudness and pitch of a sound note depends on

Question # 5

In compressional wave,the layer of medium having reduced pressure is called:

Question # 6

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

Question # 7

Time period of a simple pendulum depends upon the

Question # 8

Through which character we can distinguish the light waves from sound waves

Question # 9

A heavily damped system has a fairly

Question # 10

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

Question # 11

Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of

Question # 12

If the length of a simple pendulum is 0.25 m its time period would be

Question # 13

The resonance will be sharp, if the amplitude decreases rapidly at a frequency

Question # 14

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

Question # 15

In the resonance condition, the amplitude of the oscillator becomes

Question # 16

When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:

Question # 17

The maximum displacement of a body on either side of its equilibrium position is called

Question # 18

Which of the following is not mechanical wave?

Question # 19

If we increase the length of a simple pendulum four times, its time period will become

Question # 20

Smaller the damping, greater will be the

Question # 21

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

Question # 22

Which type of wave can be set up in solids

Question # 23

Which of the following is the longitudinal waves?

Question # 24

transverse wave motion is possible in:

Question # 25

When temperature increase, the frequency of a tuning fork

Question # 26

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

Question # 27

There is no net transfer of energy by particle of medium in

Question # 28

When the bob of simple pendulum is at mean position, its K.E will be

Question # 29

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

Question # 30

Resonance occurs when one of the natural frequencies of vibration of the forced or driven harmonic oscillator

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Velocity of sound in vacuum (in m/s) is
A. 330
B. 1000
C. 156
D. 0
2 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
3 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
4 The temperature at which the speed of sound becomes double as was at 27°C is
A. 273°C
B. 0°C
C. 927°C
D. 1027°C
5 Si units of time period is
A. second
B. hertz
C. revolution
D. vibration/sec
6 If the displacement of a body executing S.H.M is plotted against time, then the curve is known as
A. frequency of S.H.M
B. period of S.H.M
C. wave form
D. none of them
7 Which one of the following wave motions is transverse:
A. Wave motion produced in water when a piece of stone is thrown into it
B. Pulling of weight hanging vertically with a spiral spring
C. Both of these
D. None of these
8 An object undergoes S.H.M has maximum speed when its displacement from the mean position is
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value
9 When a body moves to and fro motion, this type of motion is called
A. translatory motion
B. circular motion
C. oscillatory motion
D. all of them
10 If F=0.04 N and X=4 cm then K=
A. 1 Nm-1
B. 2 Nm-1
C. 3 Nm-1
D. 4 Nm-1

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