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On producing the waves of frequency 1000 Hz in a kundt's tube the total distance between 6 successive nodes n 85 cm. Speed of sound in the gas filled in the tude is

A

`300 m//s`

B

`330 m//s`

C

`360 m//s`

D

`390 m//s`

Text Solution

Verified by Experts

The correct Answer is:
B
`5 . (lambda)/(2) = 82.5 rArr lambda = 0.33 m`
`v = f lambda = 1000 xx 0.33 = 330 m//s`
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