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Two strings X and Y of a sitar produce a...

Two strings X and Y of a sitar produce a beat frequency 4 Hz.When the tension of the string Y is slightly increased the beat frequency is found to be 2 Hz. If the frequency of X is 300 Hz,then the original frequency of Y was

A

296 Hz

B

298 Hz

C

302 Hz

D

304 Hz

Text Solution

Verified by Experts

The correct Answer is:
A
`f_(A)=300Hz, f_("beat")=4Hz`
As Tension `(T)uarr` (i.e. `f_(B)uarr`), `f_("beat")` decreases
`f_(A)-f_(B)=f_("beat")` (Possible)

`implies f_(B)=300-4=296Hz`.
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