Light with an energy flux of 18 W/cm falls on a non-reflecting surface at normal incidence. If the surface has an area of 20 cm², find the average force exerted on the surface during a span of 30 min.

Light with an energy flux of 18 W/cm falls on a non-reflecting surface at normal incidence. If the surface has an area of 20 cm², find the average force exerted on the surface during a span of 30 min.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter25: Reflection And Refraction Of Light

Section: Chapter Questions

Problem 16P

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Question

Light with an energy flux of 18 W/cm² falls
on a non-reflecting surface at normal incidence. If the surface
has an area of 20 cm², find the average force exerted on the
surface during a span of 30 min.

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