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What is refraction ?...

What is refraction ?

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Refraction is the phenomenon of change in the path of light in going from one medium to another.
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What is refractive Index ?

As shown in Fig. PQ is a ray incident on prism ABC . Show the corresponding refracted and emergent rays. The critical angle for the material of the prism is 45^@ . What is refractive index of the material of prism ? .

Knowledge Check

  • A point source of light is kept on the surface of a sphere and it is found that parallel light rays emerge from the other side of the sphere. What is refractive index of material of the sphere ?

    A
    1.5
    B
    2
    C
    2.5
    D
    3

  • Figure shows plane waves refracted for air to water. What is the refractive index of water with respect to air ?

    A
    a/e
    B
    b/e
    C
    b/d
    D
    d/b

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    The figure shows refraction of a light ray from a glass. Write the values of angles x and y. what is refractive index of slab material ?

    Refractive index of glass with respect to water is 1.125. What is the refractive index of water of refractive index of glass is 1.5.

    The velocity of light in diamond is 121000 kms^(-1) . What is the refractive index ?

    The refractive indices of a diamond and water are 2.4 and 4//3 , respectively. What is the refractive index of diamond relative to water?

    In an experiment to find refractive index of a prism it was found that the minimum deviation was 30^(@). What is the refractive index if angle of prism is also 30^(@).

    Refractive index of water with respect to air is 4/3 and glass is 3/2 . What is the refractive index of glass with respect to water ?

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