Question

observe the diagram and name the following a) pe b)ef c) fs d) angle A​

Answer 1

PE - Incident ray
EF - refracted ray
FS - emergent ray

Angle A - angle of deviance

The answer for ur question is given
Hope it helps you
Pllsssssss mark me brainliest plssssssssssssssss
Follow me Plssssssssssssssss Plssssssssssssssss

Answer 2

a) incident ray

b) emergent ray

c) angle of deviations