Question

A ray of red light is incident on a glass prism as shown in the figure given
below. Write the value of angle r. calculate the value of angle of incidence, if
the refractive index for red light is 1.5.​

Answer 1

Answer:

r=30°

i=1.5×30=45°

hope it helps....

Answer 2

Answer:

i) angle r = 30°

ii) angle i = 45°

Explanation:

see the image above