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 one of the following is an example of resonance

Question # 2

Which of the following is an example of a S.H.M?

Question # 3

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

Question # 4

A simple pendulum consists of a

Question # 5

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

Question # 6

If F=0.04 N and X=4 cm then K=

Question # 7

A swing has

Question # 8

Which one is not produced by sound waves in air?

Question # 9

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

Question # 10

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

Question # 11

If the mass of the simple pendulum becomes double, its time period

Question # 12

The velocity of sound at same temperature is maximum in

Question # 13

When a body is performing S.H.M., its acceleration is

Question # 14

When temperature increase, the frequency of a tuning fork

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 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
2 In the resonance condition, the amplitude of the oscillator becomes
A. very large
B. very small
C. zero
D. any one of them
3 In compressional wave,the layer of medium having reduced pressure is called:
A. Compression
B. Elasticity
C. Node
D. Rarefaction
4 Which one of the following could be the frequency of ultraviolet radiation?
A. 1.0 x 106Hz
B. 1.0 x 109Hz
C. 1.0 x 1012Hz
D. 1.0 x 1015Hz
5 The damping depends upon the
A. amplitude
B. sharpness
C. both of them
D. none of them
6 The velocity of sound in air not effected by changes in
A. Moisture contents in air
B. Temperature of air
C. The atmosphere pressure
D. The composition of air
7 The force which opposes the applied force producing the displacement in the spring is called
A. restoring force
B. periodic force
C. centripetal force
D. resistive force
8 Energy is not carried by
A. Transverse progressive waves
B. Longitudinal vibration
C. Stationary waves
D. Electromagnetic
9 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
10 The distance covered by the wave in one second is:
A. Wave number
B. Wave length
C. Frequency
D. Wave speed

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