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  3. RAJASTHAN PMT

RAJASTHAN PMT Rajasthan - PMT Solved Paper-2008

  • question_answer
    To  demonstrate  the  phenomenon of interference we require two sources which emit radiations of

    A)  nearly the same frequency

    B)  the same frequency

    C)  different wavelength

    D)  the same frequency and having a definite phase relationship

    Correct Answer: D

    Solution :

    Sustained interference is possible with coherent source only.


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