Question

The speed of light through clear rock salt is 1.98 × 108 m/s. Calculate its index of refraction. The speed of light in air (vacuum) is 3.00 x 108 m/s.

Answer 1

Answer:

1.52

Explanation:

speed of light through clear rock salt = speed of light in air (vacuum)/index of refraction

index of refraction of clear rock salt = speed of light in air (vacuum) / speed of light through clear rock salt

index of refraction of clear rock salt= 3.00 x 10^8 m/s / 1.98 × 10^8 m/s

index of refraction of clear rock salt= 3.00 x 10^8/1.98 × 10^8 ( the × 10^8 cancels out)

index of refraction of clear rock salt= 3.00/1.98

index of refraction of clear rock salt= 1.52