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sound singal is sent through a composti...

sound singal is sent through a compostie tube as shown in the figure. The radius of the semicrcular portion of the tube is r, speed of sound in air is v, the source of sound is capable of giving varied frequencies . If n is an integaer then frequnecy for maximum intensity is given by

A

`(nv)/(r)`

B

`(nv)/(r(pi - 2))`

C

`(nv)/(pir)`

D

`(nv)/((r - 2)pi)`

Text Solution

Verified by Experts

The correct Answer is:
B
path difference `= pir - 2r`
`DeltaS = r(pi - 2) , nlambda = DeltaS`
for constructive interference
`nlambda = r(pi - 2) , lambda = (r(pi - 2))/(n) , n = (V)/(lambda) = (Vn)/(r(pi - 2))`
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RESONANCE ENGLISH-SOUND WAVES-Exercise- 1 PART - II
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  2. Sound waves from a tuning fork A reacha point P by two separate paths ...

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  3. sound singal is sent through a compostie tube as shown in the figure....

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  4. A person is talking in a small room and the sound intensity level is 6...

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  5. An interference is observed due to two coherent sources separated by a...

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  6. When a sound wave is reflected from a wall the phase difference betwee...

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  7. If lambda(1), lamda(2)and lamda(3) are the wavelengths of the wave giv...

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  8. An open organ pipe of length l vibrates in its fundamental mode. The p...

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  9. The fundamental frequency of a closed organ pipe is sam eas the first ...

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  10. Two identical tubes A and B are kept in air and water respetively as s...

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  11. A tube of diameter d and of length l is open a both ends. Its fundamen...

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  12. The second overtone of an open pipe A and a closed pipe B have the sam...

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  13. A resonance tube is resonated with tunning fork of frequency 256Hz. If...

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  14. A sound source of frequency 512 Hz is producing 6 beats with a guitar....

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  15. Three sound waves of equal amplitudes have frequencies (v -1), v, (v +...

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  16. A closed organ pipe and an open organ pipe of same length produce 4 be...

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  17. Which of the following does not affect the apparent frequency in doppt...

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  18. An engine driver moving towards a wall with velocity of 50ms^(-1) emit...

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  19. Source and observer start moving simulatneously along x and y-axis res...

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  20. A small source of sound moves on a circle as shown in figure and an ob...

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