Does Brewster's Law Apply to Opaque Materials?

[Vinith]

Does Brewster law applicable to Opaque material?

 

[Gigaz]

Depends on what exactly you want to know.
If there is an angle where no p-polarized light is reflected?
Or whether the angle of maximum polarization difference in reflection is arctan(n1/n2)? (What would you do with the complex angle?)

I propose you use the Fresnel equations (https://en.wikipedia.org/wiki/Fresnel_equations) for p polarization and figure it out for yourself. They should work in either case.

 

[Andy Resnick]

Does Brewster law applicable to Opaque material?

Yes, but you have to be a little more careful about how the refractive index is defined. Often, opaque (absorptive) materials are modeled with a complex index of refraction, so while the formulas themselves are unaltered, the complex index of refraction modifies the results:

https://www.physicsforums.com/threads/fresnels-equation-with-complex-n.512034/