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

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

Question # 2

Smaller the damping, the resonance will be

Question # 3

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

Question # 4

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

Question # 5

The vibrations of factory floor caused by the running of heavy machinery is an example of

Question # 6

In a resonance situation the amplitude of the motion may become extra ordinarily large, if

Question # 7

The distance covered by the wave during one period is called its:

Question # 8

A heavily damped system has a fairly

Question # 9

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is

Question # 10

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

Question # 11

In solids, only following type/s of wave can travel:

Question # 12

Time period of simple pendulum is independent of

Question # 13

When a mass 'm' is pulled slowly, the spring stretches by an amount xo, then the work done will be

Question # 14

SI unit of frequency is

Question # 15

Which of the following changes at an antinode in a stationary wave?

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be
A. 45°
B. 90°
C. 135°
D. 180°
2 If the time period a simple pendulum is 2 s, its frequency would be
A. 2 Hz
B. 1.5 Hz
C. 1.0 Hz
D. 0.5 Hz
3 In compressional wave,the layer of medium having reduced pressure is called:
A. Compression
B. Elasticity
C. Node
D. Rarefaction
4 If the length of a simple pendulum is 0.25 m its time period would be
A. 1.0 s
B. 2.0 s
C. 3.0 s
D. 4.0 s
5 Sound waves in air always
A. Longitudinal
B. Transverse
C. Stationary
D. Electromagnetic
6 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
7 The restoring force always directed towards the
A. extreme position
B. mean position
C. both of them
D. none of them
8 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
9 The waves which propagate by the collision of material particles are known as
A. e.m. waves
B. mechanical waves
C. light waves
D. microwaves
10 If a freely oscillating system is subjected to an external force, then
A. free vibrations will take place
B. the body will move with its natural frequency
C. forced vibrations will take place
D. none of them

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