The refractive index of water, glass and diamond are `1.33`, `1.50`, `2.40` respectively. The refractive index of diamond relative to water and of glass relative of diamond, respectively are nearly

Options

A. `1.80`, `0.625`
B. `0.554`, `0.625`
C. `1.80`, `1.6`
D. `0.554`, `1.6`

Answer

A

Explanation

`._amu_omega=1.33, ._amu_g=1.5, ._amu_d=2.4`
`._omegamu_d=(._amu_d)/(._amu_omega)=(2.4)/(1.33)=1.80`
`._dmu_g=(._amu_g)/(._amu_d)=(1.5)/(2.4)=0.625`