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RAJASTHAN PMT Rajasthan - PMT Solved Paper-1997

  • question_answer
    Fresnels biprism experiment is performed in water in place of air then fringe width will:

    A)  increase             

    B)         decrease           

    C)         remains same  

    D)         cant say

    Correct Answer: A

    Solution :

    In Fresnels biprism experiment, fringe width is inversely proportional to wave length. In water wavelength of light decreases, so fringe width increases.


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