What is the speed of the light?

The refractive index of glass is 1.5. What is the speed of light in glass ? (Speed of light in vacuum is 3.0 xx 10^(@) ms^(-1))

(a) The refractive index of glass is 1.5. What is the speed of light in glass? ("Speed of light in vacuum is "3.0 xx 10^(8) m s^(-1)) (b) Is the speed of light in glass independent of the colour of light? If not, which of the two colours red and violet travels slower in a glass prism?

What is the speed of visible light ?

What is the scattering of light ?

What is the drift speed of electrons ?

What is the effect of light on body pigmentation ?