Define refractive index,

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Define refractive index,

Posted by Sonukishore Kamat 5 years ago

CBSE > Class 10 > Science

3 answers

Saba Yasmeen Kamdod 5 years ago

Refractive index (n) :- is defined as the ratio of speed of light in air to the speed of light in medium

1Thank You

Uzma Choudhary 5 years ago

Refractive index is a physical value which gives us a measure of ratio of speed of light in m1 to speed of light in m2

0Thank You

Gaurav Seth 5 years ago

The ratio between the speed of light in medium to speed in a vacuum is the refractive index. When light travels in medium other than the vacuum, the atoms of that medium continually absorb and re-emit the particles of light, slowing down the speed light.

The formula of the refractive index is as follows:

n=c / v

Where,

n is the refractive index

c is the velocity of light in a vacuum ( 3 × 108 m/s)

v is the velocity of light in a substance

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CBSE > Class 10 > Science