RAJASTHAN ­ PET Rajasthan PET Solved Paper-2001

  • question_answer
    Condition of diffraction is

    A)  \[\frac{a}{\lambda }=1\]          

    B)  \[\frac{a}{\lambda }>>1\]

    C)  \[\frac{a}{\lambda }<<1\]             

    D)  None of these

    Correct Answer: A

    Solution :

     For get the fringe pattern of diffraction the size of obstacle should be the order of light wavelength \[\frac{a}{\lambda }=1\]


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