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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
Two possible frequency of source are `=100 p 5 =105` or 95 Hz
Frequencies of 2nd harmonic =210 or 190 Hz
5 beats with source of frequency 205 Hz are possible only
when 2nd harmonic has frequency =210 Hz
`:.` Frequency of source `=105` Hz
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-WAVE MOTION-Exercise 2
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  9. Two sitar strings A and B are slightly out of tune and produce beats o...

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  10. Two tunning forks A and B produce notes of frequencies 256 Hz & 262 Hz...

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  11. A source of sound gives five beats per second when sounded with anothe...

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  12. When two tuning forks (fork 1 and fork 2 ) are sounded simultaneously,...

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  17. The equation of a wave travelling on a string is y=8 sin [pi/2 (4t-x/1...

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  18. The diagram shows the propagation of a progressive wave A, B, C, D, E,...

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  20. The equation of a progresive wave along a string is y=2 x 10^(-6) sin ...

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