Is it true that the SI unit of refractive index is $m / s$ ?

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

True

False

answer is B.

(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 False.
“The refractive index of a medium is defined as the ratio of the speed of light in a vacuum to the speed of light in the medium.” This is also called as absolute refractive index. The SI unit of speed is

m / s

. As the refractive index is the ratio of the same quantities, i.e., speed, the refractive index has no unit.
The correct statement would be that the refractive index has no SI unit.

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 Books for IIT JEE

Best Books for NEET

How to Join IIT after 10th