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Two closed pipe produce 10 beats per sec...

Two closed pipe produce 10 beats per second when emitting their fundamental nodes. If their length are in ratio of 25 : 26. Then their fundamental frequency in Hz , are

A

`260 , 270`

B

`260, 250`

C

`260, 280`

D

`270, 280`

Text Solution

Verified by Experts

The correct Answer is:
B
`n_(1)/n_(2) = l_(2)/l_(1) = 26/25 :. n_(1) gt n_(2) `
` :. (n_(2) + 10)/n_(2) = 26/25 :. 26 n_(2) = 25n_(2) + 250 `
` :. n_(2) = 250 " Hz and " n_(1) = 260 `Hz
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MARVEL PUBLICATION-STATIONARY WAVES-MULTIPLE CHOICE QUESTIONS (STANDARD LEVEL )
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  12. An open pipe of length 33 cm resonates with frequency of 100 Hz . If t...

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  13. If the velocity of sound in air is 320 m//s, then the maximum and mini...

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  14. Why is the sound produced by an organ pipe open at both ends is bette...

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  15. If the fifth overtone of a closed pipe is in unison with the fifth ove...

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  16. A tuning fork of frequency 480 Hz is in unison with the first overtone...

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  17. A pipe opened at both ends prpduces a note of frequency f(1). When t...

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  18. If the end correction of an open pipe is 0.8 cm, then the inner radius...

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