Question

a ray of light is moving from a medium into air. if the angle of incidence is 45 degrees in medium and angle of refraction is 60 degrees in air, then find the refractive index of material
options are:
a). 1.667
b) 1.414.
c). 1.732.
d). 2.5​

Answer 1

Answer:

Explanation:

From Snell's Law,

sin i / sin r = refractive index of given material,

So, sin 45 degree / sin 60 degree,

1/ root 2/ root 3/ 2 = 2.449.......

Which is 2.5 (round of)

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