(a) The refractive index of glass is `1.5`. What is the speed of light in glass
Channel: Doubtnut
Date: 2020-08-02

(a) The refractive index of glass is `1.5`. What is the speed of light in glass ? (Speed of light in vaccum is `3 xx 10^(8) ms^(-1)`).  (b) Is the speed of light in glass independent of colour of light ? If not, which of the two colours, red and violet travels slower in a glass prism ?