RAJASTHAN PMT Rajasthan - PMT Solved Paper-1998

  • question_answer
    By one wire diffraction pattern is obtained, if we increase the diameter of wire then fringe width:

    A)  increase             

    B)         decrease           

    C)         no change         

    D)         all of these

    Correct Answer: B

    Solution :

    On increasing the diameter of the wire fringe width will decrease. Because according to \[\beta =\frac{\lambda D}{d}\] On increasing d, \[\beta \] will decrease.


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