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

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

Question # 2

The force which opposes the applied force producing the displacement in the spring is called

Question # 3

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

Question # 4

Fidelity refers to

Question # 5

The distance covered by the wave in one second is:

Question # 6

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

Question # 7

The waves which propagate out in space due to oscillation of electric and magnetic fields are known as

Question # 8

One complete round trip of the body about its mean position is called

Question # 9

The restoring force always directed towards the

Question # 10

Time period of simple pendulum is independent of

Question # 11

If we increase the length of a simple pendulum four times, its time period will become

Question # 12

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

Question # 13

At 'resonance' the transfer of energy from deriving source to the oscillator is

Question # 14

The time required to complete on vibration is called

Question # 15

The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 In transverse waves, the individual particles of the medium move:
A. In circles
B. Perpendicular to the direction of level
C. Parallel to the direction of level
D. None of these
2 The portion of the water above its mean level forms a:
A. Crest
B. Trough
C. Both A and B
D. None of these
3 Data transmitted along glass-fiber cables is in the form of pulses of monochromatic red light each of duration 2.5 ns. Which of the following is the best estimate of the number of wavelength in each pulse?
A. 103
B. 106
C. 109
D. 1012
4 Which waves are used in sonography?
A. Microwaves
B. Infra red waved
C. Sound waves
D. Ultrasonic waves
5 If the mass of the simple pendulum becomes double, its time period
A. increase
B. decreases
C. remains constant
D. none of them
6 Decibel is unit of
A. Intensity of light
B. x-ray radiation capacity
C. sound loudness
D. Energy of radiation
7 The waves which propagate out in space due to oscillation of electric and magnetic fields are known as
A. e.m. waves
B. mechanical waves
C. sound waves
D. water waves
8 Two sound waves of slightly different frequencies propagating in the same direction produce beats due to
A. Interference
B. Diffraction
C. Polarization
D. Refraction
9 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
10 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

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