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

When an oscillatory motion repeats itself, then this type of motion is called

Question # 2

In case of mechanical waves, we study the motion of

Question # 3

Fidelity refers to

Question # 4

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

Question # 5

The wave motion set up in any medium depends upon:

Question # 6

The distance covered by the wave in one second is:

Question # 7

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

Question # 8

The process in which energy is dissipated from the oscillating system is known as

Question # 9

Which one of the following elasticizes is possessed by fluids:

Question # 10

When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to

Question # 11

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

Question # 12

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

Question # 13

For production of beats the two sources must have

Question # 14

Which of the following is the longitudinal waves?

Question # 15

In stationary waves

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The expression for restoring force is
A. F=ma
B. F=kx
C. F= -kx
D. Kx=ma
2 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
3 The frequency of free vibrations is known as
A. free frequency
B. forced frequency
C. natural frequency
D. un-natural frequency
4 The time required to complete on vibration is called
A. frequency
B. total time
C. time period
D. velocity
5 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
A. rotatory motion
B. motion under gravity
C. angular motion
D. simple harmonic motion
6 The restoring force always directed towards the
A. extreme position
B. mean position
C. both of them
D. none of them
7 It is possible to recognize a person by hearing his voice even if he is hidden behind a solid wall. This is due to the fact that his voice
A. Has a definite pitch
B. Has a definite quality
C. Has a definite capacity
D. Can penetrate the wall
8 Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?
A. 100 ms-1
B. 200 ms-1
C. 450 ms-1
D. 900 ms-1
9 A physical system under going forced vibrations is known as
A. Simple harmonic oscillator
B. Compound harmonic oscillator
C. Physical harmonic oscillator
D. driven harmonic oscillator
10 The resonance will be sharp, if the amplitude decreases rapidly at a frequency
A. equal to the resonant frequency
B. slight different from the resonant frequency
C. greatly different from the resonant frequency
D. any one of them

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