JEE Main & Advanced Sample Paper JEE Main Sample Paper-19

  • question_answer 36) When white light passes through a dispersive medium, it breaks up into various colours. Which of the following statements is true?

    A)  Velocity of light for violet is greater than the velocity of light for red colour.

    B)  Velocity of light for violet is less than the velocity of light for red.

    C)  Velocity of light is the same for all colours

    D)  Velocity of light for differnet colours has nothing to do with the phenomenon of dispersion

    Correct Answer: B

    Solution :

     As \[{{\mu }_{v}}>{{\mu }_{r}}\] therefore, \[{{v}_{v}}<{{v}_{r}}\]

adversite



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