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

Example of progressive wave is

Question # 2

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

Question # 3

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

Question # 4

The waves which propagate by the collision of material particles are known as

Question # 5

If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get

Question # 6

If two waves of length 50 cm and 51 cm produced 12 beats per second, the velocity of sound is

Question # 7

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

Question # 8

The velocity of sound at same temperature is maximum in

Question # 9

Which one of the following wave motions is transverse:

Question # 10

Example of vibratory motion is

Question # 11

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

Question # 12

The time required to complete on vibration is called

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

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 # 17

Transverse waves can be set up:

Question # 18

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

Question # 19

Longitudinal waves are also called:

Question # 20

Which one of the following elasticizes is possessed by fluids:

Question # 21

Which of the following is the longitudinal waves?

Question # 22

In stationary waves

Question # 23

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:

Question # 24

The frequency of free vibrations is known as

Question # 25

The wave motion set up in any medium depends upon:

Question # 26

The force which opposes the applied force producing the displacement in the spring is called

Question # 27

Such oscillations in which the amplitude decreases steadily with time, are called

Question # 28

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

Question # 29

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

Question # 30

In the production of beats by 2 waves of same amplitude and nearly same frequency, the maximum intensity to each of the constituent waves is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 In the same medium, velocity of the wave:
A. Goes on increasing
B. Remains constant
C. Goes on decreasing
D. None of these
2 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
3 transverse wave motion is possible in:
A. Air
B. A mixture of NH3and O2
C. Strings
D. All of these
4 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
5 The portion of the water above its mean level forms a:
A. Crest
B. Trough
C. Both A and B
D. None of these
6 Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of
A. very small energy
B. very large energy
C. frictional forces
D. acceleration due to gravity
7 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
8 The natural frequency of a pendulum which is vibrating freely, depends upon its
A. mass
B. length
C. material
D. all of them
9 Fluids can transmit:
A. Transverse wave
B. Compressional wave
C. Both of them
D. None of them
10 When a wave is travels from one place to another, it transfers:
A. Matter
B. Energy
C. Momentum
D. Both B and C

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