A tuning fork gives 4 beats with 50 cm length of a sonometer wire. If – McqOptions

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1.	A tuning fork gives 4 beats with 50 cm length of a sonometer wire. If the length of the wire is shortened by 1 cm, the number of beats is still the same. The frequency of the fork is [MP PMT 2001]
A.	396
B.	400
C.	404
D.	384
Answer» B. 400

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