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Two waves represented by the following equations are travelling in the same medium `y_(1)= 5sin 2 pi (75 t-0.25x),y_(2)=10 sin2 pi (150 t-0.50x)`
The intensity ratio `I_(1)//I_(2)` of the two waves is

A

`1:2`

B

`1:4`

C

`1:8`

D

`1:16`

Text Solution

Verified by Experts

The correct Answer is:
B
`(I_(1))/(I_(2))=(a_(1)^(2))/(a_(2)^(2))=(25)/(100)=(1)/(4)`.
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