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 Ic if the wave is totally absorbed. |
(b) | Radiation pressure is Ic if the wave is totally reflected. |
(c) | Radiation pressure is 2Ic if the wave is totally reflected. |
(d) | Radiation pressure is in the range Ic<P<2Ic for real surfaces. |
1. (a, b, c)
2. (b, c, d)
3. (a, c, d)
4. (c, d)