A tuning fork whose frequency as given by manufacturer is 512 Hz is be – McqOptions

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1.	A tuning fork whose frequency as given by manufacturer is 512 Hz is being tested with an accurate oscillator. It is found that the fork produces a beat of 2 Hz when oscillator reads 514 Hz but produces a beat of 6 Hz when oscillator reads 510 Hz. The actual frequency of fork is [MNR 1979; RPMT 1999]
A.	508 Hz
B.	512 Hz
C.	516 Hz
D.	518 Hz
Answer» D. 518 Hz

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