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Sound waves of frequency 660 Hz fall nor...

Sound waves of frequency `660 Hz` fall normally on a perfectly reflecting wall. The shortest distance from the wall at which the air particles have maximum amplitude of vibration is ……………… meters.

A

`(1)/(2) m`

B

`(1)/(4)m`

C

`(1)/(8) m`

D

`(1)/(16) m`

Text Solution

Verified by Experts

The correct Answer is:
C
`lambda = v/n = 660/330 = 1/2 m `
Shortest distance for maximum amplitude [ antinode] is `lambda/4 = 1/8 ` m
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