An electromagnetic wave of intensity I falls on a surface kept in vacuum and exerts…

Physics · Class 12 · CBSE — Electromagnetic Waves

1. Radiation pressure is I/c if the wave is totally absorbed .
2. Radiation pressure is I/c if the wave is totally reflected.
3. Radiation pressure is 2 I/c if the wave is totally reflected.
4. Radiation pressure is in the range I/c < p > 2 I/c for real surfaces.

Answer

(B) Radiation pressure is I / c if the wave is totally reflected.

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