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An EM wave of intensity 'I' falls on a s...

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

A

Radiation pressure is `I//c` if the wave is totally absorbed.

B

Radiation pressure if `I//c` if the wave is totally reflected.

C

Radiation pressure is `21//c` if the wave is totally reflected.

D

Radiation pressure is in the range `I//cltplt21//c` for real surfaces.

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