Question

The refractive index of flint glass is 1.65 and that for alcohol is 1.36 with respect to air. What is the refractive index of the flint glass with respect to alcohol ? 

A. 0.82 

B. 1.21 

C. 1.11

D. 1.01

Answer 1

Correct option is B. 1.21

Refractive index of flint glass w.r.t alcohol = \(\frac{R.I \,of \,flint \,glass}{R.I \,of \,alcohol}\) 

= \(\frac{1.65}{1.36}\) = 1.21

Correct answer –(B)1.21