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.
Answer :
Absolute refractive index of a medium shows the ratio of speed of light in air to speed of light in that medium. Let us assume c is the speed of light in air, v1 is speed of light in glass and v2 is speed of light in diamond.
Rdg =1.6 ----(1)
Absolute refractive index of glass ,
Rga =1.5 -----(2)
multiplying equation (1) and (2) ,
So, absolute refractive index of diamond = 2.4