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Define dispersion of light....

Define dispersion of light.

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When a beam of white light or composite light is refracted through any transparent media such as glass or water, it is split into its component colour. This phenomenon is called dispersion of light.
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Knowledge Check

  • V_(V),V_(R ),V_(G) are the velocities of violet, red and green lights respectively, passing through a prism after dispersion of white light. Which among the following is a correct relation ?

    A
    `V_(V)=V_(R )=V_(G)`
    B
    `V_(V)lt V_(G)lt V_(R )`
    C
    `V_(V) gt V_(R ) gt V_(G)`
    D
    `V_(V) lt V_(R ) =V_(G)`

  • Dispersion of light is caused due to

    A
    a) Wavelength
    B
    b) intensity of light
    C
    c) density of medium
    D
    d) none of these

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