An EM wave of intensity \(I\) falls on a surface kept in a vacuum and exerts radiation pressure \(P\) on it. Which of the following are true?

(a) Radiation pressure is \(\frac{I}{c}\) if the wave is totally absorbed.
(b) Radiation pressure is \(\frac{I}{c}\) if the wave is totally reflected.
(c) Radiation pressure is \(\frac{2I}{c}\) if the wave is totally reflected.
(d) Radiation pressure is in the range \(\frac{I}{c}<P<\frac{2I}{c}\) for real surfaces.

1. (a, b, c)
2. (b, c, d)
3. (a, c, d)
4. (c, d)

Subtopic:  Properties of EM Waves |
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