The velocity of light in vacuum can be changed by changing

The value of velocity of light in vacuum is:

Velocity of light in water is 3/4 times the velocity of light in vacuum. Find the refractive, index of water.

The direction of light can be changed by ______

The ratio between the velocity of light in a given optical medium to the velocity of light in vacuum is called refractive index.

If c and c_(1) are the velocities of light in vacuum and in a medium respectively, then the relation of velocity of light with the refractive index of the medium will be

How the speed of light in vacuum is affected by the change of wavelength of light?

How is speed of light in vacuum affected by change in wavelength//intensity of light ?