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A tuning fork of frequency 340Hz vibrat...

A tuning fork of frequency 340Hz vibrated above a cylindrical hallow tube closed at one end. The height of the tube is 120cm . Water is slowly poured in it. What is the minimum height of water required for resonance ?

A

`25cm`

B

`45cm`

C

`75cm`

D

`95cm`

Text Solution

Verified by Experts

The correct Answer is:
B
If `p` is order of resonance, length of air columns
`l=(2p-1)(lambda)/(4) le L` and `lambda=(V)/(n)`
`h=L-l_(2)`
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NARAYNA-WAVES-Exercise-I (H.W)
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  16. Five beats per second are produced on vibrating two closed organ pipes...

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