# C. If the refractive index of glass with respect to air is 3/2, what is the refractive index of air with respect to glass? (i). 1/2 (ii). 3 (iii). 1/3 (iv). 2/3

C. If the refractive index of glass with respect to air is 3/2, what is the refractive index of air with respect to glass?
(i). 1/2 (ii). 3 (iii). 1/3 (iv). 2/3

verified

The correct answer is option (iv).

Refractive index of air with respect to glass is 2/3.