A tuning fork of unknown frequency x, produces 5 beats per second
with a tuning fork of frequency of 250 Hz. It produces 10 beats / second
with another tuning fork of frequency 265 Hz. The unknown frequency
is
(A) 245 Hz
(B) 255 Hz
(C) 275 Hz
(D) 270 Hz
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Answer:
0ption B is correct
............
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