Is it true that the refractive index of a medium is defined as the ratio of the speed of light in vacuum to the speed of light in the medium?

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

True

False

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

The above statement is True.
“The refractive index of a medium is defined as the ratio of speed of light in vacuum to the speed of light in the medium.” This is also known as the absolute refractive index. The speed of light in a medium is always less than the speed of light in a vacuum, so the refractive index is always greater than one. For rarer mediums, the speed of light is more, and for denser mediums, the speed of light is comparatively less.

Watch 3-min video & get full concept clarity

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Online Course for IIT JEE

Best Online Course for NEET

Best Online Course for CBSE