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Class 11 Physics
Waves Chapter 15
Quiz 1
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Maximum destructive inference between two waves occurs when the waves are out of the phase by
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π/2radians
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Π radians
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π/3 radians
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π/4 radians
In what types of waves can we find capillary waves and gravity waves?
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Water waves
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Gases
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Sound waves
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x-rays
To the nearest order of magnitude, how many times greater than the speed of sound is the speed of light?
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104
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1012
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108
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106
The angular frequency is related to the time period T by
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A
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B
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C
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D
A steel wire 120 cm long has mass 12 g attached to it. If the wire is under a tension of 150N, what is the speed of transverse wave in the wire?
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2.12 m/s
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1.24 m/s
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1.65 m/s
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1.22 m/s
In a wave which quantity is transferred from one point to the other.
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matter
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frequency
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wavelength
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energy
What is the range of frequency of audible sound?
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20Hz to 20000hz
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5Hz to 5000hz
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20 Hz to 2000Hz
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2Hz to 200Hz
In a transverse wave, the constituents of the medium oscillate ___________to the direction of wave propagation and in a longitudinal wave they oscillate ________to the direction of propagation.
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perpendicular, parallel
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parallel, perpendicular
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parallel, parallel
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perpendicular, perpendicular
A wave travelling along a string is described by y (x,t)=0.005 sin(95.0x-4.0t) what would be its angular wave number, k and wavelength, λ?
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6.66 cm
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6.61cm
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6.01m
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6.61m
Waves associated with moving protons, electrons, neutrons, atoms are known as
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Matter waves
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Gamma rays
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Electromagnetic waves
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None of the above
Explanation
Matter waves
0 h : 0 m : 1 s
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