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Hey , I need some indication to solve this problem:

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

From here what can I do to find the displacement?

I attach a picture of the problem.

Thank you

**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?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}mFrom here what can I do to find the displacement?

I attach a picture of the problem.

Thank you