Question:

A parallel beam of monochromatic light of wave length 500 nm

Last updated: 6/8/2023

A parallel beam of monochromatic light of wave length 500 nm

A parallel beam of monochromatic light of wave length 500 nm is incident normally on a perfectly absorb surface The power through any cross section of the beam is 10 W Find a Number of photon absorb by surface per second b The force exerted by light beam on the surface C