Index of refraction
Material Speed of Light Index of Refraction
Air 300,000,000 1.00
water 225,000,000 1.33
Diamond 124,000,000 2.42
Glass
1.50
20
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As light slows down, it bends or refracts. The index of refraction helps predict the amount of bending. How are the
speed of light and the index of refraction related?
The speed of light is a constant in all materials.
The index is proportional to the speed of light in the medium
The index is inversely proportional to the speed of light in the medium.
The index is proportional to the square of the speed of light in the
medium.