Optics Question 803

Question: A glass prism of refractive index 1.5 is immersed in water (refractive index 4/3). A light beam incident normally on the face AB is totally reflected to reach on the face BC if

Options:

A) sinθ89

B) 23<sinθ<89

C) sinθ23

D) 12<sinθ<1

Show Answer

Answer:

Correct Answer: A

Solution:

[a] The phenomenon of total internal reflection takes place during reflection at P.



NCERT Chapter Video Solution

Dual Pane