Question

Find the Limiting angle of a quartz prism for no emergent ray .R.I=1.46

Answer 1

Hey dear,
I've solved the problem in image attachement.

◆ Answer -
Limiting angle of incidence for quartz prism = 24.14°

◆ Explaination-
[Refer to the image for detailed solution]

● Limiting angle of incidence -
- The angle at which grazing incidence and grazing emergence occurs is called the limiting angle for a prism.
- At this point, there is no emergent ray because angle of emergence becomes 90°.

Hope it helps...