A source of unknown frequency gives 4 beats/s, when sounded with a source of known frequency 250 hz. The second harmonic of the source of unknown frequency gives five beats per second, when sounded with a sources of frequency 513 Hz. The unknown frequency is: - Study24x7
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A source of unknown frequency gives 4 beats/s, when sounded with a source of known frequency 250 hz. The second harmonic of the source of unknown frequency gives five beats per second, when sounded with a sources of frequency 513 Hz. The unknown frequency is:

A

254 Hz

B

246 Hz

C

240 Hz

D

260 Hz

NEET/Medical NEET / Medical
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