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Online Tests
ECAT Physics Chapter 8 Waves Online Test MCQs With Answers
Question # 1
The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as
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longitudinal waves
transverse waves
non-mechanical waves
none of them
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Question # 2
The velocity of sound in air not effected by changes in
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Moisture contents in air
Temperature of air
The atmosphere pressure
The composition of air
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Question # 3
Which of the following changes at an antinode in a stationary wave?
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Density only
Pressure only
Both pressure and density
Neither pressure nor density
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Question # 4
It is possible to recognize a person by hearing his voice even if he is hidden behind a solid wall. This is due to the fact that his voice
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Has a definite pitch
Has a definite quality
Has a definite capacity
Can penetrate the wall
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Question # 5
There is no net transfer of energy by particle of medium in
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Longitudinal wave
Transverse wave
Progressive wave
Stationary wave
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Question # 6
The waves moving from a sitar to a listener in air are
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Longitudinal progressive
Longitudinal stationary
Transverse progressive
Transverse stationary
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Question # 7
If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get
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diffraction
beat
interference
resonance
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Question # 8
The velocity of sound is greatest in
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Water
Air
Vacuum
Metal
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Question # 9
The waves which propagate through the oscillations of material particles are known as:
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Mechanical waves
Electromagnetic waves
Any of them
None of them
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Question # 10
Energy is not carried by
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Transverse progressive waves
Longitudinal vibration
Stationary waves
Electromagnetic
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Question # 11
If the time period a simple pendulum is 2 s, its frequency would be
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2 Hz
1.5 Hz
1.0 Hz
0.5 Hz
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Question # 12
Smaller the damping, greater will be the
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frequency
wavelength
amplitude
none of them
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Question # 13
Fidelity refers to
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Reproduction of original sound
Reproduction of original image
Reproduction of music
Reproduction of a CD from original copy
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Question # 14
A weakly damped system has fairly
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sharp resonance curve
flat resonance curve
both of them
none of them
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Question # 15
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 # 16
Which of the following is an example of a S.H.M?
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motion of a projectile
motion of a train along a circular path
motion of swing
electrons revolving sound the nucleus
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