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When a guitar string is sounded with a 440 Hz tuning fork a beat frequency of 5 Hz is heard if the experiment is repeated with a tuning fork of 437 Hz

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When a guitar string is sounded with a 440 Hz tuning fork a beat frequency of 5 Hz is heard if the experiment is repeated with a tuning fork of 437 Hz ,the beat frequency is 8 Hz .The string frequency (Hz ) is
A. 445
B. 435
C. 429
D. 448
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by (75.1k points)
Correct Answer - A
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