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

  • question_answer
    The refractive indices for the light of violet and red colours of any material are 1.66 and 1.64 respectively.  If the angle of prism made of this material is 10o, then angular dispersion will  be                                            [UPSEAT 1999]

    A)            0.20o                                        

    B)            0.10o

    C)            0.40o                                        

    D)            1o

    Correct Answer: A

    Solution :

               \[\theta =({{\mu }_{v}}-{{\mu }_{r}})A\]\[=(1.66-1.64)\times {{10}^{o}}={{0.2}^{o}}\]


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