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

  • question_answer
    When white light passes through a glass prism, one gets spectrum on the other side of the prism. In the emergent beam, the ray which is deviating least is or Deviation by a prism is lowest for                     [MP PMT 1997]

    A)            Violet ray                               

    B)            Green ray

    C)            Red ray                                   

    D)            Yellow ray

    Correct Answer: C

    Solution :

               \[\delta \propto (\mu -1)\]\[\Rightarrow {{\mu }_{R}}\] is least so \[{{\delta }_{R}}\] is least.


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