A 75 mW laser produces a (polarized) beam of 595 nm light. This light reflects normally off an object that reflects 90 percent of the incident energy. How long does it take this laser to give the surface a momentum of 0.005 kgm/s If the rms electric field inside the beam is 1600 v/m, what is the radius of the beam?

A 75 mW laser produces a (polarized) beam of 595 nm light. This light reflects normally off an object that reflects 90 percent of the incident energy. How long does it take this laser to give the surface a momentum of 0.005 kgm/s If the rms electric field inside the beam is 1600 v/m, what is the radius of the beam?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 46P: A plane electromagnetic wave of frequency 20 GHz moves in the positive y-axis direction such that...

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