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JEE Main & Advanced Physics Ray Optics Question Bank Refraction of Light at Plane Surfaces

  • question_answer
    Light of wavelength is \[7200\,{AA}\] in air. It  has a wavelength in glass (\[\mu =1.5\]) equal to                                                     [DCE 1999]

    A) \[7200\,\,{AA}\]               

    B) \[4800\,\,{AA}\]

    C) \[10800\,\,{AA}\]             

    D) \[7201.5\,\,{AA}\]

    Correct Answer: B

    Solution :

    \[{{\lambda }_{glass}}=\frac{{{\lambda }_{air}}}{\mu }=\frac{7200}{1.5}=4800\,{AA}\]


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