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Solution - Refraction of Light - Refractive Index

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Question

How refraction of light is related to refractive index?

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Find out, from Table, the medium having highest optical density. Also find the medium with lowest optical density.

Material

 

medium

Refractive indexMaterial mediumRefractive

 

index

Air1.0003Canada Balsam1.53
Ice1.31
Water1.33Rock salt1.54
Alcohol1.36
Kerosene1.44Carbon disulphide1.63
Fused

 

quartz

1.46Dense

 

flint glass

1.65
Turpentine oil1.47Ruby1.71
Benzene1.50Sapphire1.77
Crown

 

glass

1.52Diamond2.42
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A ray of light travelling in air enters obliquely into water. Does the light ray bend towards the normal or away from the normal? Why?

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If the refractive index of glass for light going from air to glass is 3/2, find the refractive index of air for light going from glass to air.

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You are given kerosene, turpentine and water. In which of these does the light travel fastest? Use the information given in Table.

Material
medium
Refractive indexMaterial mediumRefractive

 

index

Air1.0003Canada Balsam1.53
Ice1.31
Water1.33Rock salt1.54
Alcohol1.36
Kerosene1.44Carbon disulphide1.63
Fused
quartz
1.46Dense
flint glass
1.65
Turpentine oil1.47Ruby1.71
Benzene1.50Sapphire1.77
Crown
glass
1.52Diamond2.42
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The refractive index of diamond is 2.42. What is the meaning of this statement?

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Solution for concept: Refraction of Light - Refractive Index. For the course 9th - 10th SSC (English Medium)
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