State whether the following statement is true or false:

The difference between the speed of light in vacuum and the speed of light within the medium is the absolute refractive index of a medium.

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

True

False

answer is A.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

The given statement is true.
Concept: The speed of light depends on the medium it is traveling through. Along with these, there are a number of other factors that affect the speed of light. By understanding every factor, we can calculate the absolute refractive index.
The absolute refractive index of a medium is defined as the difference between the speed of light in vacuum and the speed of light inside the medium. If the speed of light in a vacuum is c and the speed of light in a medium is v, then n = c/v.
The difference in relative refractive indices between two media is proportional to their absolute refractive indices. Even though a material's absolute refractive index is always greater than unity, its relative refractive index can be greater or lower than one.
Hence, the given statement is true.

Watch 3-min video & get full concept clarity