Question

The speed of light through sapphire is 1.70 ×108 m/s. Calculate its index of refraction. Given velocity of the light is 3.0 × 108 m/s

Answer 1

Answer:

According to Snell's Law: sin rsin i=n1n2=v2v1 and Refractive Index for air is ≈1

Substituting, 11.5=v23×108

Therefore, v2=1.53×108=2×108 m/s