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 vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called

Question # 2

Example of vibratory motion is

Question # 3

When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be

Question # 4

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

Question # 5

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

Question # 6

The expression for restoring force is

Question # 7

The weight 'mg' of the bob is resolved into

Question # 8

A heavily damped system has a fairly

Question # 9

A body is executing free vibrations when it oscilates

Question # 10

The loudness and pitch of a sound note depends on

Question # 11

Smaller the damping, the resonance will be

Question # 12

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

Question # 13

If the length of second pendulum becomes four times then its time period will become

Question # 14

Crests and troughs are formed in:

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Transverse waves can be set up:
A. Solids
B. Liquids
C. Gases
D. All of them
2 When temperature increase, the frequency of a tuning fork
A. Increases
B. Decreases
C. Remains same
D. Increase or decreases depending on the material
3 If two waves of length 50 cm and 51 cm produced 12 beats per second, the velocity of sound is
A. 360 m/s
B. 306 m/s
C. 331 m/s
D. 340 ms
4 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
5 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
6 Of the following, the option ______ reminds of longitudinal waves.
A. Sound waves
B. Heat waves
C. Electromagnetic waves
D. Light waves
7 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
8 Example of vibratory motion is
A. mass suspended from a spring
B. a bob of simple pendulum
C. mass attached to a spring placed
D. all of them
9 In compressional wave,the layer of medium having reduced pressure is called:
A. Compression
B. Elasticity
C. Node
D. Rarefaction
10 A weakly damped system has fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them

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