Question

explain absolute refractive index
(class - 10)

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Answer 1

Answer:

It is the speed of light in vacuum to the speed of light in any medium

n = c÷v

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Answer 2

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Refractive index: It is defined as the bending of light rays while the light ray enters from one medium to another. It is denoted by the letter n and expressed as:

n=fraccv

Where,

c is the speed of light with a certain wavelength in the air

v is the speed of light in the given medium

Following are the factors on which the refractive index is dependent:

Nature of the medium

Physical conditions

Colour of the wavelength of light

Therefore, these are the factors that determine the refractive index.

Relative refractive index: When light travels from one medium to another medium, then the refractive index is known as the relative refractive index.

Absolute refractive index: When light travels from vacuum to another medium, then the refractive index is known as the absolute refractive index