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Student Question

Secondary V • 2yr.

Hi! Could someone explain to me how white light can scatter in full color when it passes through a prism?


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Explanations (1)

  • Explanation from Alloprof

    Explanation from Alloprof

    This Explanation was submitted by a member of the Alloprof team.

    Team Alloprof • 2yr.

    Hello !

    The phenomenon you describe is called dispersion. This is what happens when white light entering a prism splits into all the colors.

    Since white light has several different wavelengths, when the waves enter the prism, they are each refracted with a different speed. This variation causes the scattering effect, where it is possible to separately observe the colors of all wavelengths contained in white light.

    Don’t worry ; understanding this phenomenon requires more advanced knowledge of physics (college level) ;). 

    Do not hesitate to ask other questions! Good job 😉

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