The refractive index of diamond is `2.42`. What is the meaning of this statement ?

The value of refractive index of diamond is

The refractive index of carbon disulphide is 1*63 . What is the meaning of this statemnet in relation to speed of light?

A ray of laser of a wavelength 630 nm is incident at an angle of 30^(@) at the diamond-air interface. It is going from diamond to air. The refractive index of diamond is 2.42 and that of air is 1. Choose the correct option

If the refractive index of diamond is 2.4 find the velocity of light in diamond.(c= 3xx10^(8) m/s)

The refractive index of diamond is 2.47 and that of glass is 1.51 . How much faster does light travel in glass than in diamond ?

The refractive index of diamond is 2.47 and that of glass is 1.51 . How much faster does light travel in glass than in diamond ?

The refractive index of diamond is 2.47 and that of window glass is 1.51 . Find the ratio of speed of light in glass and diamond.