Quick question about pressure radiation for reflection

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SUMMARY

The discussion centers on the calculation of pressure radiation for reflection, specifically the formula pradiation(reflection) = 2I/c, where I represents intensity and c is the speed of light. The user attempts to express radiation pressure in terms of force and area, proposing pradiationreflection = 2F/A. However, it is concluded that the factor of 2 should not be included in the force per unit area equation, as pressure is defined simply as p = F/A.

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  • Understanding of radiation pressure concepts
  • Familiarity with the formula for intensity (I) and speed of light (c)
  • Knowledge of force and area relationship in physics
  • Basic algebra for manipulating equations
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Homework Statement


write pressure radiation for reflection in terms of force and area


Homework Equations


pradiation(reflection)=2I/c
p=F/A


The Attempt at a Solution


pradiationreflection=2F/A

is that correct? (im fairly certain I've solved this correctly but i just wanted to check)
 
Physics news on Phys.org
radiation pressure , in the case of reflection is [itex]\frac{2I}{c}[/itex], but the pressure is just force per unit area. so you should not have the factor of 2 in the second equation
 

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