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

  • question_answer
    White light is passed through a prism whose angle is 5°. If the refractive indices for rays of red and blue colour are respectively 1.64 and 1.66, the angle of deviation between the two colours will be                                           [MP PET 1997]

    A)            0.1 degree                             

    B)            0.2 degree

    C)            0.3 degree                             

    D)            0.4 degree

    Correct Answer: A

    Solution :

               \[\theta =({{\mu }_{v}}-{{\mu }_{r}})A=0.02\times {{5}^{o}}={{0.1}^{o}}\]


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