Question

I. A beam of light passes from air into a substance x.
If the angle of incidence is 60 and angle of refraction
is 30. Calculate the refractive index of substance X?​

Answer 1

Answer:

Refractive index when angle of incidence and angle of refraction are given=sin i/ sin r. So given that sin i=45° and sin r=30. So refractive index of a substance==sin i =45°=1/√2 and sin r= 30°=1/2

Answer 2

Answer:

✓3

Step-by-step explanation:

by smells law m1 sini = m2 sinr

1× sin60= m2× sin30

m2=✓3