Question

The index of refraction of amethyst is 1.55 and of air is 1.00.

a) At what angle will light in amethyst be totally internally reflected at the amethyst-air interface?

b) If light in the amethyst is incident on the interface at 20◦, at what angle does it emerge into the air?

c) You see a mosquito preserved in the amethyst. What is the magnification of the image you see?

d) If the mosquito were alive and could see you. What magnification of your image would it see?

Answer 1