Question

What is the angular deviation of the emergent ray from the glass block with respect to the
incident ray?​

Answer 1

Explanation:

Let

• Angular Deviation = delta
• Angle of Incidence = i
• Angle of emergence = e
• Refracting angle = A

Now we know that

i+e=A+delta

Put the respected values and find the emergent angle with respect to incidence angle

Answer 2

The emergent ray is parallel to the incident when its produced. Hence there's no Angular deviation.

Hope it helped you....