A perfectly absorbing sphere of radius 10 cm is placed in a broad uniform parallel light beam of intensity 600 W·m⁻². Take c = 3×10⁸ m·s⁻¹. If the net radiation force is approximately N×10⁻⁸ N, find N to the nearest integer.

Physics · Photoelectric effect and dual nature of matter · question based on photoelectric effect

JEE MainsNEETJEE Advanced

A perfectly absorbing sphere of radius 10 cm is placed in a broad uniform parallel light beam of intensity 600 W·m⁻². Take c = 3×10⁸ m·s⁻¹. If the net radiation force is approximately N×10⁻⁸ N, find N to the nearest integer.