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DUMET Medical DUMET Medical Solved Paper-2009

  • question_answer
    When a glass lens with n = 1.47 is immersed in a trough of liquid, it looks to be disappeared. The liquid in the trough could be

    A)  water           

    B)  kerosene

    C)  glycerine        

    D)  alcohol

    Correct Answer: C

    Solution :

     If lens is immersed in such a liquid whose refractive index is equal to that of lens, then it will seem to be disappeared. Refractive index of glycerine is 1.47.


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