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

  • question_answer
    For the sustained interference of light, the necessary condition is that the two sources should [DPMT 1996; RPMT 1998, 2003]

    A)            Have constant phase difference

    B)            Be narrow

    C)            Be close to each other

    D)            Of same amplitude

    Correct Answer: A

    Solution :

               The essential condition for sustained interference is constancy of phase difference.


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