Question

The refractive index of water 1/2 is Expalin the meaning of this statement.

Define refractive index.​

Answer 1

Answer:

In optics, the refractive index (also known as refraction index or index of refraction) of a material is a dimensionless number that describes how fast light travels through the material. It is defined as

{\displaystyle n={\frac {c}{v}},}n={\frac {c}{v}},

where c is the speed of light in vacuum and v is the phase velocity of light in the medium. For example, the refractive index of water is 1.333, meaning that light travels 1.333 times slower in water than in a vacuum. Increasing the refractive index corresponds to decreasing the speed of light in the material.

Explanation:

Answer 2

Refractive index, also called index of refraction, measure of the bending of a ray of light when passing from one medium into another.

Refractive index is also equal to the velocity of light c of a given wavelength in empty space divided by its velocity v in a substance,

or n = c/v.