A whistle whose air column is open at both ends has a fundamental frequency $500 H z .$ The whistle is dipped in water such that half of it remains out of water. What will be the fundamental frequency now?

250 H z

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125 H z

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500 H z

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1000 H z

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Solution

The correct option is C $500 H z$
$∴ \frac{v}{2 l} = 500 H z$
$f = \frac{v}{4 (\frac{l}{2})} = \frac{v}{2 l} = 500 H z$
hence,
option $(C)$ is correct answer.

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A whistle whose air column is open at both ends has a fundamental frequency 500 Hz. The whistle is dipped in water such that half of it remains out of water. What will be the fundamental frequency now?

The correct option is C 500 Hz∴v2l=500Hzf=v4(l2)=v2l=500Hzhence,option (C) is correct answer.

A whistle whose air column is open at both ends has a fundamental frequency $500 H z .$ The whistle is dipped in water such that half of it remains out of water. What will be the fundamental frequency now?

The correct option is C $500 H z$
$∴ \frac{v}{2 l} = 500 H z$
$f = \frac{v}{4 (\frac{l}{2})} = \frac{v}{2 l} = 500 H z$
hence,
option $(C)$ is correct answer.