Question
Physics Question on Ray optics and optical instruments
A beam of light composed of red and green rays is incident obliquely at a point on the face of a rectangular glass slab. When coming out on the opposite parallel face, the red and green rays emerge from
A
Two points propagating in two different parallel directions
B
One point propagating in two different directions through slab
C
One point propagating in the same direction through slab
D
Two points propagating in two different non parallel directions
Answer
Two points propagating in two different parallel directions
Explanation
Solution
When a beam of light composed of red and green rays enters a rectangular glass slab and comes out on the opposite parallel face, the red and green rays emerge from one point propagating in the same direction through the slab.