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A piano note is compared to a tuning for...

A piano note is compared to a tuning fork vibrating at 440 Hz. Three beats per second are listened by the piano tuner. When the tension in the string is increased slightly, the beat frequency increases. What was the initial frequency of the piano wire ?

A

434 Hz

B

437 Hz

C

443 Hz

D

446 Hz

Text Solution

Verified by Experts

`f prop sqrtT`
So `Deltaf` increases by increasing T.
i.e. `f_2=f_1+3=443 Hz]`
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