Question

Pls help me with part a . with diagram

plssssss​

Answer 1

Answer:

your answer is in the above attachment.

go through it.

Explanation:

whenever a ray of light is perpendicular to a prism it passes undeviated ( that what happened at AC)

but at surface AB it was at angel 45° so after total internal reflection it striked at BC making an angle of 45° and moved to AC.

Here, on being perpendicular it passed undeviated.

Hope it helps

thank you.