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A plance sound waves passes from medium ...

A plance sound waves passes from medium `1` into medium`2`. The speed of sound in medium `1` is `200 m//s` and in medium `2` is `100 m//s`. The ratio of amplitude of the transmitted waves to that of incident waves is

A

`(3)/(4)`

B

`(4)/(5)`

C

`(5)/(6)`

D

`(2)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
`A_(t) = ((2 nu_(2))/(nu + nu_(2))) A_(i)`
:. `(A_(t))/(A_(t)) = (2 xx 100)/(200 + 100) = (2)/(3)`
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