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A stretched string resonates with a tuni...

A stretched string resonates with a tuning fork of frequency 500 Hz, when the length of the string is `0.75` m. If a tuning fork of frquency 250 Hz is used, then the new resonating length will be

A

`1.5 m`

B

`1 m`

C

`0.75 m`

D

`3 m`

Text Solution

Verified by Experts

The correct Answer is:
A
`n_(1)L_(1) = n_(2)L_(2) :. 500 xx 0.75 = 250 xx L_(2)`
` :. L_(2) = 1.5 `m
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