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

  • question_answer
    Under minimum deviation condition in a prism, if a ray is incident at an angle 30o, the angle between the emergent ray and the second refracting surface of the prism is [EAMCET (Engg.) 2000]

    A)            0o   

    B)            30 o

    C)            45 o

    D)            60 o

    Correct Answer: D

    Solution :

               In minimum deviation \[i=e={{30}^{o}},\] so angle between emergent ray and second refracting surface is \[{{90}^{o}}-{{30}^{o}}={{60}^{o}}\]


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