An earth orbiting satellite has solar energy collecting panel with total area 5 m2 . If solar radiations are perpendicular and completely absorbed, the average force associated with the radiation pressure is (Solar constant= 1.4 kWm−2 )
Answer & explanation
Correct answer: option 3
Power = I × area = (1.4 × 103) × 5
Force $F=\frac{Power}{c}=\frac{1.4×10^3×5}{3×10^8}$
$=2.33 × 10^{-5} $ N