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

  • question_answer
    The angle of prism is 5o and its refractive indices for red and violet colours are 1.5 and 1.6 respectively.  The angular dispersion produced by the prism is                 [MP PMT 2000]

    A)            7.75o                                        

    B)            5 o

    C)            0.5 o                                          

    D)            0.17 o

    Correct Answer: C

    Solution :

               \[\theta \]\[=({{\mu }_{v}}-{{\mu }_{R}})A\]\[=(1.6-1.5)\times 5={{0.5}^{o}}\]


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