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 traveling wave has a shape of:

Question # 2

When a wave is travels from one place to another, it transfers:

Question # 3

Which type of wave can be set up in solids

Question # 4

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

Question # 5

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?

Question # 6

Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:

Question # 7

Energy is not carried by

Question # 8

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

Question # 9

A swing has

Question # 10

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

Question # 11

The resonance will be sharp, if the amplitude decreases rapidly at a frequency

Question # 12

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

Question # 13

When temperature increase, the frequency of a tuning fork

Question # 14

Which of the following does not exhibit S.H.M?

Question # 15

If the length of second pendulum becomes four times then its time period will become

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 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
2 While describing the motion of a simple pendulum, the frictional effects are
A. taken into account
B. completely ignored
C. partially ignored
D. none of them
3 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave
4 Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as
A. waves
B. beat
C. interference
D. resonance
5 The vibratory or oscillatory motion of a body is
A. translatory motion
B. back and forth motion about its mean position
C. free all motion
D. circular motion
6 When two waves with same frequency and constant phase difference phase difference interfere
A. There is a gain of energy
B. There is a loss of energy
C. The energy is redistributed and the distribution changes with time
D. The energy is redistributed and the distribution remains constant with time
7 Smaller the damping, the resonance will be
A. more flat
B. more sharp
C. both of them
D. none of them
8 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
9 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
10 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

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