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Online Tests
11th Class Part 1 Physics Chapter 8 Test Online MCQs With Answers
Question # 1
The mechanism of transports energy of all the waves is
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Different
Same
Complicated
Easy
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Question # 2
In stationary waves, the velocity of particle at the node is.
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Maximum
Infinite
Zero
Varible
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Question # 3
Sound wave can not be
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Reflected
Refracted
Diffracted
Polarized
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Question # 4
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 # 5
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 # 6
The speed \velocity of sound is greatest in.
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Air
Steel
Ammonia
Water
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Question # 7
According to Newton, sound travels in air under conditions of.
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Adiabatic
Isothermal
Isobaric
Isochoric
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Question # 8
When two waves of same frequency travel in opposite direction, the phenomenon will be
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Diffraction
Stationary waves
Polarization
Interference
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Question # 9
The pitch of sound deepens upon
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Intensity of sound
Loudness of sound
Wavelength of sound
Frequency of sound
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Question # 10
The process followed by Newton for the determination of speed of sound in air is
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Adiabatic
Isothermal
Isobaric
Isochoric
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Question # 11
The speed of stars and galaxies can be calculated by
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Compton effect
Stefan's law
Doppler's effect
Pascal's law
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Question # 12
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 # 13
Wavelength of a wave for closed pipe having length 'l' in the fundamental mode is.
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2 l
1/2
4 l
l
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Question # 14
If the wave motion is 0.01 sec and wave speed is 100 ms-1 then frequency of wave is.
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0.5 Hz
1 Hz
10 Hz
100 Hz
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Question # 15
Beats can be heard when difference of frequency is not more than.
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8 Hz
10 Hz
4 Hz
6 Hz
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Question # 16
A stationary waves is established din a string which vibrates in four segments at a frequency of 120 Hz, Its fundamental frequency is.
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15 Hz
30 HZ
60 Hz
480 Hz
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Question # 17
The experimental value for the velocity of sound in air is
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233 m-sec
-1
333 m-sec
-1
433 m-sec
-1
533 m-sec
-1
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Question # 18
Waves transport energy without transporting
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Matter
Force
Momentum
All of these
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