Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 15

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The string of a violin has a fundamental frequency of $440 Hz .$ If the violin string is shortened by one fifth, its fundamental frequency will be changed to

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Important Questions on Waves

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 18

Third overtone of a closed orange pipe is in unison with the fifth harmonic of an open organ pipe. The ratio of the lengths of the closed pipe and the open pipe is

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 19

Which of the followings represent the variation of frequency $(f)$ with radius of cross section of a stretched string?

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 23

The wavelength of the fundamental note produced by a pipe of length

2 m,

when its both ends are open is

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 27

In the standing wave shown, particles at the positions $A$ and $B$ have a phase difference of

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 28

If in a string fixed at both ends, the seventh harmonic is set up, the number of nodes and antinodes respectively is

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 30

Two waves of equation

y_{1} = a \cos (ω t + k x)

and

y_{2} = a \cos (ω t - k x)

are superimposed upon each other. They will produce

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 32

The change in phase if a wave is reflected from a rigid surface is

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 34

For constructive interference, the phase difference between the two interfering waves is