Question

The value of absolute refractive index of a medium is always?

• A. less than 1
• B. eequal to 1
• C. equal to 0
• D. more than 1

Answer 1

Answer:

D. more than 1

• The absolute refractive index of any medium is always more than one.

• The refractive index of a material describes how fast light travels through that material.

• More specifically, it is the ratio of the speed of light in a vacuum to the speed of light in that medium.

• It is always greater than one.