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 not mechanical wave?

Question # 2

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 # 3

The portion of the water above its mean level forms a:

Question # 4

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

Question # 5

transverse wave motion is possible in:

Question # 6

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

Question # 7

In stationary waves

Question # 8

SI unit of wave length is:

Question # 9

Angular frequency 'w' is basically a characteristics of

Question # 10

The wave motion set up in any medium depends upon:

Question # 11

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

Question # 12

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

Question # 13

The number of vibrating body at any instant from its equilibrium position is called

Question # 14

Two sources of sound are said to be coherent if

Question # 15

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 The temperature at which the speed of sound becomes double as was at 27°C is
A. 273°C
B. 0°C
C. 927°C
D. 1027°C
2 The waves which propagate through the oscillations of material particles are known as:
A. Mechanical waves
B. Electromagnetic waves
C. Any of them
D. None of them
3 The distance covered by the wave in one second is:
A. Wave number
B. Wave length
C. Frequency
D. Wave speed
4 When a body is performing S.H.M., its acceleration is
A. inversely proportional to the displacement
B. directly proportional to the applied force
C. directly proportional to the amplitude
D. directly proportional to the displacement but in opposite direction
5 A weakly damped system has fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
6 SI unit of wave length is:
A. Kilometer
B. Metre
C. Centimetre
D. Hertz
7 When the bob of simple pendulum is at extreme position, its K.E. will be
A. maximum
B. minimum
C. zero
D. all of them
8 When a wave is travels from one place to another, it transfers:
A. Matter
B. Energy
C. Momentum
D. Both B and C
9 The principle of superposition states that
A. The total displacement due to several waves is the sum of the displacement due to those waves acting individually
B. Two stationary waves superimpose to give two progressive waves
C. A diffraction pattern consists of many interference patterns superimposed on one another
D. Two progressive waves superimpose to give a stationary wave
10 The number of vibrating body at any instant from its equilibrium position is called
A. displacement
B. frequency
C. amplitude
D. time period

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