Light enters from air into diamond, which has a refractive index of `2.42`. Calculate the speed of light in diamond. The speed of light in air is `3 xx10^(8)m//s`.

Explanation

Here, `n=2.42,v=?,c= 3 xx 10^(8) m//s` As `n=c/v, v=c/n=(3xx10^(8))/(2.42)=1.24 xx 10^(8) m//s`.