Question

Refractive index of diamond with respect to glass is $1.6$ and absolute refractive index of glass is $1.5$. Find out the absolute refractive index of diamond.

• A. $1.06$
• B. $0.93$
• C. $2.4$
• D. $0.75$

Answer 1

The correct option is C $2.4$

Given,

Refractive index of diamond with respect to glass, ${}_g{n}_d=1.6$,

Absolute refractive index of glass, $n_g=1.5$

Refractive index of diamond with respect to glass $=\frac{\text{Absolute refractive index of diamond}}{\text{Absolute refractive index of glass}}$

Therefore, absolute refractive index of diamond $=$ Refractive index of diamond with respect to glass $\times$ Absolute refractive index of glass $=1.6\times 1.5=2.4$