JEE Main & Advanced Physics Wave Optics Question Bank Young's Double Slit Experiment and Biprism

  • question_answer In Young's double slit experiment, the phase difference between the light waves reaching third bright fringe from the central fringe will be (l =6000 Å )                       [MP PMT 1994]

    A)            Zero                                         

    B)            \[2\pi \]

    C)            \[4\pi \]                                  

    D)            \[6\pi \]

    Correct Answer: D

    Solution :

               \[\because n=3,\ \ \therefore 2n\pi =2\times 3\pi =6\pi \]

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