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Online Tests
11th Class Part 1 Physics Chapter 8 Test Online MCQs With Answers
Question # 1
In transverse waves the particles of medium vibrate
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Along the direction of wave
Opposite to direction of wave
Perpendicular to direction of wave
Slowly
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Question # 2
Waves transport energy without transporting
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Matter
Force
Momentum
All of these
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Question # 3
In vibrating string, the points where the amplitude is maximum are called.
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Nodes
Antinodes
Troughs
Crests
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Question # 4
The error in speed of sound calculated by Newton at STP is about.
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0 %
14 %
15 %
16 %
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Question # 5
the louder the sound, the greater will be its.
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Speed
Frequency
Amplitude
Wave length
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Question # 6
If a stretched string 4 m long and it has 4 loops of stationary waves, then the wave length is.
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1m
2 m
3 m
4 m
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Question # 7
When the amplitude of a wave is increase to doubled is energy.
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Remain the same
Increases 4 times
Increases by two times
Decreases by half
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Question # 8
A set of frequencies which are multiples of the fundamental frequency are called.
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Doppler effect
Nodal frequencies
Beat frequencies
Hamonics
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Question # 9
Crests and trough are formed in.
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Longitudinal waves
transverse waves
Stationary waves
Compression waves
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Question # 10
When sound waves enter in different medium, the quantity that remains unchanged is.
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Intensity
Speed
Frequency
Wave length
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Question # 11
the velocity of sound is maximum at 20
o
C in
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Lead
Copper
Glass
Iron
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Question # 12
Longitudinal waves do not exhibit
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Reflection
Refraction
Polarization
Diffraction
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Question # 13
Sound waves are
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Electromagnetic waves
Transverse waves
Compressional waves
Matter waves
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Question # 14
When the amplitude of a wave become double, its energy becomes
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One half
Two times
Three times
Four times
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Question # 15
Two waves of same frequency and moving in the same direction produces.
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Interference
Diffraction
Beats
Stationary waves
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Question # 16
Increase in the velocity of sound in air for 1
o
C rise in temperature is.
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61 ms-1
0.61 ms-1
161 ms-1
261 ms-1
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Question # 17
The distance covered by wave in 1 sec is
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wavelength
Wave number
Wave speed
Frequency
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Question # 18
The speed of sound in air does not depend upon
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Temperature
Pressure
Density
Medium
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