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Two tuning forks A and B vibrating simul...

Two tuning forks `A` and `B` vibrating simultaneously produce `5 beats//s`. Frequency of `B` is `512 Hz`. If one arm of `A` is filed, the number of beats per second increases. Frequency of `A` is

A

`502 Hz`

B

`507 Hz`

C

`517 Hz`

D

`522 Hz`

Text Solution

Verified by Experts

The correct Answer is:
C
`f_(B) = 512 Hz, f_(A) = 512+-5=517` or `507 Hz`
If arms of `A` is filed, `f_(A): uparrow` Beat frequency: `uparrow`.
`f_(A) = 517 Hz`
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