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If the intensity of the incident radiowa...

If the intensity of the incident radiowave of `1 "watt"//m^2` is reflected by the surface, find the pressure exerted on the surface.

A

`7 xx 10^(-9)"N/m"^2`

B

`8 xx 10^(-9)"N/m"^2`

C

`6 xx 10^(-10)"N/m"^2`

D

`10^(-19)"N/m"^2`

Text Solution

Verified by Experts

The correct Answer is:
A
Pressure exerted by absorbed wave on the surface
`P = (1)/( c ) = (2) /( 3 xx 10^6) = 0.667 xx 10^(-8) "N/m"^2`
`= 6.67 xx 10^(-7) "N/m"^2`
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