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State the relation of velocity of light ...

State the relation of velocity of light with refractive index.

Text Solution

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The correct Answer is:
`mu = (c)/(v)`
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Knowledge Check

  • If c and c_(1) are the velocities of light in vacuum and in a medium respectively, then the relation of velocity of light with the refractive index of the medium will be

    A
    `mu = (c_(1))/( c )`
    B
    `mu = c_(1)c`
    C
    `mu = ( c )/(c_(1)`
    D
    `mu = c-c_(1)`

  • Statement I : Greater is the refractive index of a medium or denser the medium, lesser is the velocity of light in that Statement II : Refractive index is inversely proportional to velocity.

    A
    Statement I is true, statement II is true, statement II is a correct explanation for statement I.
    B
    Statement I is true, statement II is true, statement II is not a correct explanation for statement I.
    C
    Statement I is true, statement II is false.
    D
    Statement I is false, statement II is true. '

  • Statement I : The velocity of light rays of different colours is the same. But the velocity of the light rays are different for any other medium. If v = velocity of light in the respective medium c = velocity of light in vacuum, mu = refractive index, then v = ( c )/(mu) . Statement II : mu is different for different media.

    A
    Statement I is true, statement II is true, statement II is a correct explanation for statement I.
    B
    Statement I is true, statement II is true, statement II is not a correct explanation for statement I.
    C
    Statement I is true, statement II is false.
    D
    Statement I is false, statement II is true. '

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    Absolute refractive index of water and glass are (4)/(3) and (3)/(2) . What is the ratio of velocity of light in glass and water?

    Define absolute refractive index.

    What is the unit of refractive index ?

    Give the relation between critical angle and refractive index

    Which colour of light has the maximum refractive index?

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