Question

Refractive index of water and glass is
and
respectively. The
critical angle for a light ray entering from glass into water is
A. Sini)
C. Sin-1( )
B. Sini)
D. Sin()​

Answer 1

Answer:

(c) Sin-1( ) , critical angle for a ray entering from glass

Answer 2

Answer:

option A

Explanation:

Sin i

sini÷sinr=n21

n21= medium 1 divided by medium 2