RI of diamond wrt air is 2.4 & glass w.r.t. air is 1.5. Calculate the RI of diamond wrt glass.
Velocity of light in diamond is 125000km/s. Calculate its RI w.r.t to air.
Refractive index of diamond is 2.42 and that of glass is 1.5. Calculate the critical angle for diamond-glass surface.