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RAJASTHAN ­ PET Rajasthan PET Solved Paper-2004

  • question_answer
    A mica slit of thickness t and refractive index \[\mu \] is introduced in the ray from the first source\[{{S}_{1}}\]. By how much distance of fringes pattern will be displaced?

    A)  \[\frac{d}{D}(\mu -1)t\]

    B)  \[\frac{D}{d}(\mu -1)t\]

    C)  \[\frac{d}{(\mu -1)D}\]

    D)  \[\frac{D}{d}(\mu -1)\]

    Correct Answer: B

    Solution :

     Fringe displacement \[{{x}_{0}}=\frac{D(\mu -1)t}{d}\]


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