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Two sound waves are represented by y(1...

Two sound waves are represented by
`y_(1) = 10 sin 2pi (50 t- 0.5x), y_(2) = 30 sin 2pi (60t - 0.8x)`
The ratio of their intensities `((I_(1))/(I_(2)))` is

A

`1 : 3`

B

`1 : 4`

C

`1 : 9`

D

`3 : 1`

Text Solution

Verified by Experts

The correct Answer is:
C
`(I_(1))/(I_(2)) = ((10)/(30))^(2) = (1)/(9)`
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