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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2002

  • question_answer
    Diffraction pattern for a plane progressive wave is obtained from the edges of a disc. If screen is taken nearby the disc then the intensity of diffraction pattern will be:

    A)  increases            

    B)              decreases           

    C)               remain unchanged             

    D)  first increases and then decreases

    Correct Answer: A

    Solution :

    If screen is taken near by the disc, it means distance between source and screen is decreasing, so intensity increases.


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