question_answer

The diagram shows a ray PQR travelling through a glass slab. Which option in the table gives the correct name for all three rays?

A)

P	Q	R
Incident ray	Emergent ray	Refracted ray

               

B)

P	Q	R
Incident ray	Refracted ray	Emergent ray

               

C)

P	Q	R
Emergent ray	Incident ray	Refracted ray

               

D)

P	Q	R
Emergent ray	Refracted ray	Incident ray