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Sound waves of frequency 600 H(Z) fall n...

Sound waves of frequency `600 H_(Z)` fall normally on perfectly reflecting wall. The distance from the wall at which the air particles have the maximum amplitude of vibration is (speed of sound in air = `330 m//s`)

A

`0.5 m`

B

`0.25 m`

C

`0.125 m`

D

`1 m`

Text Solution

Verified by Experts

The correct Answer is:
C

`x = lambda//4`
`lambda = (v)/(f) =(330)/(660) = (1)/(2)m`
`x = (lambda)/(4) = (1)/(8)m = 0.125 m`
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