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Online Tests
Physics Fsc Part 1 Chapter 8 Online Test MCQs With Answers
Question # 1
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 # 2
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 # 3
A bat finding its correct location by sending
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Matter waves
Ultrasonic waves
Infrasonic waves
electromagnetic waves
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Question # 4
When two identical travelling waves are superimposed, velocity of resultant wave.
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Decreases
Increases
Remain same
Becomes zero
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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
Stationary waves are generated on a string of high l, if tension is increased , frequency of vibration will
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Decrease
Unchanged
Half
Increases
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Question # 7
The speed of sound in air does not depend upon
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Temperature
Pressure
Density
Medium
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Question # 8
the example of mechanical waves is
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Water waves
Infrared waves
Radio waves
Ultraviolet waves
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Question # 9
In stationary waves, the particle velocity at nodes is
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Minimum
Maximum
Zero
Constant
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Question # 10
Light waves are
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Longtail waves
Transvers waves
Stationary waves
Mechanical wave
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Question # 11
the wavelength of transverse wave travelling with a speed 'v' having frequency 'f' in equal to
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f/v
Vf
V/f
f/V2
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Question # 12
According to Newton's formula, the speed of sound in air at STP is
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332 ,ms-1
340 ms-1
350 ms-1
280 ms-1
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Question # 13
Speed of sound in copper is
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38000 ms-1
3600 ms-1
3500 ms-1
3400 ms-1
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Question # 14
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Question # 15
Diffraction is a special type of
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Reflection
Polarization
Interference
Refraction
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Question # 16
An oscillating mass-spring system produces
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Sound waves
Electromagnetic waves
Light waves
Periodic waves
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Question # 17
Sound waves are
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Electromagnetic waves
Transverse waves
Compressional waves
Matter waves
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Question # 18
The wavelength of fundamental note in one end closed pipe in term of length 'l' of pipe is.
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4 l
2l
l
1/4 l
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