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Two tuning forks, A and B, produce notes...

Two tuning forks, A and B, produce notes of frequencies 258 Hz and 262 Hz. An unknown note sounded with A produces certain beats. When the same note is sounded with B, the beat frequency gets doubled. The unknown frequency is

A

`268 Hz`

B

`250 Hz`

C

`260 Hz`

D

`258 Hz`

Text Solution

Verified by Experts

The correct Answer is:
A, D
Dopplar effect in frequency appears when there is relative motion between source and observer
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