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The frequecies of tuning forks A and B a...

The frequecies of tuning forks A and B are respectively 5% more and 3% less than the frequency of tuning fork C. When A and B are sounded together 8 beats/second are heard. Then the frequency of the tuning fork B will be

A

103 Hz

B

100 Hz

C

115 Hz

D

97 Hz

Text Solution

Verified by Experts

The correct Answer is:
D
Let n be the frequency of C
`:. n_(A) - n_(B) = (1.05 - 0.97) n`
`:. 8 = 0.08n :. n = 100 and n_(B) = 97 Hz`
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