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how to find the refractive index. The determining factor in such a case is the refractive index given that frequency is constant. The value of this constant fracsin isin r for a light ray passing through a vacuum into a given medium is called the refractive index n of the medium.
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The value of this constant fracsin isin r for a light ray passing through a vacuum into a given medium is called the refractive index n of the medium. The refractive index of any material is equal to the ratio of. 3 Measure the angle between PQ and PR.
The light has different velocities in different materials due to the difference in their densities.
3 Measure the angle between PQ and PR. Mathematically it can be represented as a ratio between two different velocities the velocity of light in vacuum and the velocity of light in a given medium. For example typical soda-lime glass has a refractive index of 15 which means that in glass light travels at times the speed of light in a vacuum. It is a dimensionless measure.
