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NEET Sample Paper NEET Sample Test Paper-79

  • question_answer
    In Young's double slit experiment, the fringe width is found to be 0.8 mm. If whole apparatus is immersed in water of refractive index \[\frac{4}{3}\], the new fringe width will be

    A) 0.3                              

    B) 0.6

    C) 0.8                              

    D) None of these

    Correct Answer: B

    Solution :

    Given, \[\beta = 0.8 mm,\,\,\mu =\frac{4}{3}\] \[\therefore \] New fringe width \[\beta '=\frac{\beta }{\mu }=\frac{0.8}{\frac{4}{3}}=0.6\]


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