Question

the critical angle for a medium is 60 degree what is the refractive index of the medium​

Answer 1

Answer:

Since critical angle for the medium is 60 degree

we know that refractive index=1/sin c

here c is critical angle

so refractive index =1/sin 60

=2/root3

Answer 2

Answer:

Explanation

i=60°

r=90

refractive medium = sin i/sin r

                               =sin 60/sin90=√3/2