An earth- orbiting satellite has a solar energy collecting panel with total area `5 m^2` If solar radiations are perpendicular and completely absorbed, the average force associated with the radiation pressure is (Solar constant `= 1.4 k Wm^(-2)` )

Options

A. `2.33 xx 10^(-3)` N
B. `2.33 xx 10^(-4)` N
C. `2.33 xx 10^(-5)` N
D. `2.33 xx 10^(-6)` N

Answer

C

Explanation

We know that, Power `= I xx area`
`= (1.4 xx 10^(3)) xx5`
Force `F = ("Power")/( c) = (1.4 xx 10^(3) xx 5)/(3xx 10^(8))`
`= 2.33 xx 10^(-5) ` N