J & K CET Medical J & K - CET Medical Solved Paper-2008

  • question_answer
    Colours in thin films are due to

    A)  diffraction phenomenon

    B)  scattering phenomenon

    C)  interference phenomenon

    D)  polarization phenomenon

    Correct Answer: C

    Solution :

                     When the light rays fall on thin film of oil then rays are reflected from upper and lower layer of the thin films. These reflected rays produce interference pattern due to which surface of thin film appears as coloured.


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