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JCECE Medical JCECE Medical Solved Paper-2008

  • question_answer
    When an unpolarized light of intensity \[{{\text{I}}_{\text{0}}}\]is incident on a polarizing sheet, the intensity of the light which does not get transmitted is

    A) \[\frac{1}{2}{{I}_{0}}\]

    B)  \[\frac{1}{4}{{I}_{0}}\]

    C)   zero

    D)  \[{{I}_{0}}\]

    Correct Answer: A

    Solution :

     \[I={{I}_{0}}{{\cos }^{2}}\theta \] Intensity of polarized light \[=\frac{{{I}_{0}}}{2}\] \[\therefore \] Intensity of untransmitted light \[={{I}_{0}}-\frac{{{I}_{0}}}{2}=\frac{{{I}_{0}}}{2}\]


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