JEE Main & Advanced Physics Question Bank Prism Theory and Dispersion of Light

  • question_answer
    The refractive indices of violet and red light are 1.54 and 1.52 respectively. If the angle of prism is 10°, then the angular dispersion is                                                                [MP PMT 1990]

    A)            0.02                                          

    B)            0.2

    C)            3.06                                          

    D)            30.6

    Correct Answer: B

    Solution :

               \[\delta =({{\mu }_{v}}-{{\mu }_{r}})A=0.02\times 10=0.2\]


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