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Online Tests
Physics ECAT Pre Engineering Chapter 8 Waves Online Test MCQs With Answers
Question # 1
The maximum displacement of a body on either side of its equilibrium position is called
Choose an answer
frequency
amplitude
displacement
time period
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Question # 2
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?
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10
3
10
6
10
9
10
12
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Question # 3
The process in which energy is dissipated from the oscillating system is known as
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resonance
interference
diffraction
damping
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Question # 4
In stationary waves
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Energy is uniformly distributed
Energy is minimum at nodes and maximum at antinodes
Energy is maximum at nodes and minimum at antidotes
Alternating maximum and minimum energy producing at nodes and antinodes
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Question # 5
The phase determines the
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displacement
amplitude
frequency
state of motion of vibrating body
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Question # 6
The distance covered by the wave during one period is called its:
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Wave number
Frequency
Wavelength
Time period
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Question # 7
One complete round trip of the body about its mean position is called
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displacement
vibration
a complete motion
an acceleration
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Question # 8
transverse wave motion is possible in:
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Air
A mixture of NH
3
and O
2
Strings
All of these
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Question # 9
When two waves with same frequency and constant phase difference phase difference interfere
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There is a gain of energy
There is a loss of energy
The energy is redistributed and the distribution changes with time
The energy is redistributed and the distribution remains constant with time
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Question # 10
The example of mechanical wave is
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waves in ropes
waves on water surface
waves in air
all of them
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Question # 11
Mechanical waves on the surface of a liquid are
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Transverse
Longitudinal
Torsional
both transverse and longitudinal
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Question # 12
When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:
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Longitudinal waves
Transverse waves
Water waves
Complex waves
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Question # 13
The vibratory or oscillatory motion of a body is
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translatory motion
back and forth motion about its mean position
free all motion
circular motion
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Question # 14
The restoring force always directed towards the
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extreme position
mean position
both of them
none of them
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Question # 15
Of the following, the option ______ reminds of longitudinal waves.
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Sound waves
Heat waves
Electromagnetic waves
Light waves
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Question # 16
Which one of the following is an example of resonance
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swing
tuning a radio
microwave oven
all of them
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