A) 200 Hz
B) 202 Hz
C) 196 Hz
D) 204 Hz
Correct Answer: C
Solution :
[c] |
The frequency of foror 204 Hz Since, on attaching the tape on the prong of forits frequency decreases, but now the number of beats per second is 6 i.e., the frequency difference now increases. |
It is possible only when before attaching the tape, the frequency of foris less than the frequency of tuning for. Hence, the frequency of foris 196 Hz. |
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