Question

In the shown figure, a ray of light is incident from air
on one face of a equilateral glass prism. When angle
of incidence is 90°, the refracted ray from the first
face goes undeviated from the second face. The
refractive index of the material of the prism is
AIR
600
AIR
60°
60°​

Answer 1

Answer:

where is figure.

Explanation:

can't understand the question.

Answer 2

Answer:

sorry it's too difficult .

please contact experts .