Radiations of intensity `0.5 W//m^(2)` are striking a metal plate. The pressure on the plate is

Options

A. `0.166xx10^(-8)Nm^(-2)`
B. `0.332xx10^(-8)Nm^(-2)`
C. `0.111xx10^(-8)Nm^(-2)`
D. `0.083xx10^(-8)Nm^(-2)`

Answer

A

Explanation

`P=(I)/(c)=(0.5)/(3xx10^(8))=0.166xx10^(-8)Nm^(-2)`