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JEE Main & Advanced Physics Wave Optics / तरंग प्रकाशिकी Question Bank Wave Nature and Interference of Light

  • question_answer
    Intensities of the two waves of light are I and 4I. The maximum intensity of the resultant wave after superposition is                                                                           [MP PET 2002]

    A)            5 I  

    B)            9 I

    C)            16 I                                           

    D)            25 I

    Correct Answer: B

    Solution :

                       \[{{I}_{\max }}={{I}_{1}}+{{I}_{2}}+2\sqrt{{{I}_{1}}{{I}_{2}}}\] So, \[{{I}_{\max }}=I+4I+2\sqrt{I.4I}=9I\]


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