Question

If velocity of sound in a gas is 360 m/s and the distance between a compression and the nearest rarefaction is 2 m, then the frequency of sound is ____________.

विकल्प

• 90 Hz

• 180 Hz

• 360 Hz

• 720 Hz

Answer 1

If velocity of sound in a gas is 360 m/s and the distance between a compression and the nearest rarefaction is 2 m, then the frequency of sound is 90 Hz.

Explanation:

Distance between a compression and the nearest rarefaction is `lambda/2 = 2  "m."`

`"Hence n" = "v"/lambda = 360/4`

` = 90  "Hz"`