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

Question # 2

Fidelity refers to

Question # 3

Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

Question # 4

The restoring force always directed towards the

Question # 5

The wave motion set up in any medium depends upon:

Question # 6

Angular frequency 'w' is basically a characteristics of

Question # 7

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

Question # 8

The waves which propagate through the oscillations of material particles are known as:

Question # 9

Which one of the following could be the frequency of ultraviolet radiation?

Question # 10

As the bob of the pendulum moves to and fro which of the force is experienced by the bob

Question # 11

Which type of wave can be set up in solids

Question # 12

A second's pendulum is a pendulum whose time period is

Question # 13

Wave disturbances may also come in a concentrated bundle, like shock wave from an aeroplane flying at

Question # 14

For a body executing S. H. M, its

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
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
A. rotatory motion
B. motion under gravity
C. angular motion
D. simple harmonic motion
2 Wave disturbances may also come in a concentrated bundle, like shock wave from an aeroplane flying at
A. subsonic speed
B. sonic speed
C. super sonic speed
D. any one of them
3 Fluids can transmit:
A. Transverse wave
B. Compressional wave
C. Both of them
D. None of them
4 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
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 The time period of pendulums of different lengths would be
A. same
B. different
C. both of them
D. none of them
7 Two sources of sound are said to be coherent if
A. The produce sounds of equal intensity
B. They produce sounds of equal frequency
C. They produce sound waves vibrating with the same phase
D. They produce sound waves with zero or constant phase difference all instant of time
8 When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be
A. F= Kx0
B. F=1/2Kx0
C. F=2Kx0
D. F=4Kx0
9 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
10 Two sound waves of slightly different frequencies propagating in the same direction produce beats due to
A. Interference
B. Diffraction
C. Polarization
D. Refraction

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