What is the refractive index of a medium in which light travels with a speed of `2 xx 10^8 m//s` ?

Refractive index of a medium in which velocity of light is 2 xx 10^(8) m * s^(-1) , is

What is the refractive index in a medium where the speed of light is 1.5xx10^8 m/s ?

Define absolute refractive index of a medium. Find its value for glass in which speed of light is 2 xx 10^(8)m//s .

Light travels through water with a speed of 2.25 xx 10^(8)m//s . What is the refractive index of water ? Given speed of light in vacuum = 3xx10^(8)m//s .

The velocity of light in a medium is 2 xx 10^(8) m//s .What is the refractive index of the medium with respect to air, if the velocity of light in air is 3 xx 10^(8) m//s ?

What will be the speed of light in water if it is given that the refractive index of water is 4/3 and the speed of light in air is 3 xx 10^(8) m/s?