Hey , I need some indication to solve this problem:(adsbygoogle = window.adsbygoogle || []).push({});

A ray light impinges at a 60 degres angle of incidence on a glass pane of thickness 5mm and index of refraction of 1.54.

the ligth is reflected by a mirror that touches the back of the pane. By how much is the beam displaced compared with the return path it would have if the pane were absent?

I found the angle x --normal with the refracted ray. x= 34.2 degres.

I also found the length of the ray entering in the glass (up to the mirror)--L= 5.10^{-3}\ cos(x)=6.0 10^{-3}m

From here what can I do to find the displacement?

I attach a picture of the problem.

Thank you

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# Homework Help: Index of refraction optics problem

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