Question

refractive index of diamond with respect to glass is 1.6 and absolute refractive index of glass is 1.5find the absolute refractive index of diamond

Answer 1

refractive index of diamond wrt. glass = abslt rft. index of dia. / abslt. rft. index of glass

therfore

$refractive \: index \: of \: dia. = 1.6 \times 1.5 = 2.4$