FYKOS Year 32 Series 6 Problem 1 — selfenlightment · FYKOS 32 #32.6.1

Physics · optics

Problem

We illuminate a mirror at an angle of

\alpha = 15\mathrm{\dg }

with respect to the normal. We want the light to travel directly back to the source. For doing so, we can use a glass prism with an index of refraction

n = 1,8

. Find the angle

\eta

as a function of

\alpha

and

n

(see the figure). The prism is placed into the air with an index of refraction

n_0

Related theory

optics

Browse the problem library