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RAJASTHAN ­ PET Rajasthan PET Solved Paper-2002

  • question_answer
    In a double-slit experiment, the slits are separated by a distance d and the screen is at a distance D from the slits. For monochromatic source of wavelength X, the width of emitted fringe will be

    A)  \[\beta =\frac{D\lambda }{d}\]

    B)  \[\beta =\frac{d\lambda }{D}\]

    C)  \[\beta =\frac{D\lambda }{d}\]          

    D)  None of these

    Correct Answer: A

    Solution :

     Band width \[\beta =\frac{D\lambda }{d}\]


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