Year: 2015
Topic: Electromagnetic waves
Time :
1. A radiation of energy āEā falls normally on a perfectly reflecting surface The momentum transferred to the surface is (C = Velocity of light):
(1). \(\displaystyle \frac{E}{C}\)
(2). \(\displaystyle \frac{2E}{C}\)
(3). \(\displaystyle \frac{2E}{C^2}\)
(4). \(\displaystyle \frac{E}{C^2}\)