Question 6.
Mark the correct answer in the following questions.
If the refractive index of glass with respect to air is 3/2, what is the refractive index of air with respect to glass?
A. 
B. 3
C. 
D. 
Answer:
Since refractive index of medium 2 with respect to medium 1 = 1/refractive index of medium 1 with respect to refractive index of medium 2. So if refractive index of glass with respect to air is 3/2 so refractive index of air with respect to glass = 
= 
