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If the sound waves produced by the tunin...

If the sound waves produced by the tuning fork can be expressed as `y = 0.2 (cm) sin (kx - omega t)` , where `K = 2 pi//lambda` and `omega = 2 pi f (f = 512 Hz)`, maximum value of amplitude in a beat will be

A

`0.4 cm`

B

`0.6 cm`

C

`0.8 cm`

D

`0.2 cm`

Text Solution

Verified by Experts

The correct Answer is:
A
Waves expressed by tuningfork
`y = 0.2 sin ( kx - omega t)`
Maximum value of amplitude of beat is `2 A`
`y = 2 xx 0.2 = 0.4 cm`
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