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When two tuning forks (fork 1 and fork 2) are sounded simultaneously, 4 beats per second are heard. Now some tape is attached to the prongs of fork 2. When the tuning forks are sounded again, 6 beats per second are heard. If the frequency of fork 1 is 200 Hz, then what was the original frequency of fork 2 ?

A

200 Hz

B

202 Hz

C

196 Hz

D

204 Hz

Text Solution

Verified by Experts

The correct Answer is:
D
If the frequency of fork 1 is 200 Hz then probable frequencies of fork 2 is either 196 Hz or 204 Hz. As on attaching some tape on fork 2, be at frequency increases, this is possible only if the frequency of fork 2 is 196 Hz.
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