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A source of sound gives five beats per s...

A source of sound gives five beats per second when sounded with another source of frequency `100s^-1`. The second harmonic of the source together with a source of frequency `205s^-1` gives five beats per second. What is the ferquency of the source?

A

105 Hz

B

205 Hz

C

95 Hz

D

100 Hz

Text Solution

Verified by Experts

The correct Answer is:
A
The frequency may be 105Hz or 95Hz. `:.` Its second harmonic will be either 210Hz and 190Hz. Since 5 beats are possible with the frequency 210Hz, Frequency of the source = 150Hz
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