A tuning fork arrangement (pair) produces 4 beats/sec with one fork of – McqOptions

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1.	A tuning fork arrangement (pair) produces 4 beats/sec with one fork of frequency 288 cps. A little wax is placed on the unknown fork and it then produces 2 beats/sec. The frequency of the unknown fork is [KCET 1998; AIEEE 2002]
A.	286 cps
B.	292 cps
C.	294 cps
D.	288 cps
Answer» C. 294 cps

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