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

  • question_answer
    The wavelength of light diminishes \[\mu \] times (\[\mu =1.33\] for water) in a medium. A diver from inside water looks at an object whose natural colour is green. He sees the object as   [CPMT 1990; MNR 1998]

    A)            Green                                     

    B)            Blue

    C)            Yellow                                     

    D)            Red

    Correct Answer: A

    Solution :

               Colour of light is determined by its frequency and as frequency does not change, colour will also not change and will remains green.


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