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JEE Main & Advanced Physics Wave Optics / तरंग प्रकाशिकी Question Bank Wave Nature and Interference of Light

  • question_answer
    What causes changes in the colours of the soap or oil films for the given beam of light       [AFMC 2005]

    A)            Angle of incidence             

    B)            Angle of reflection

    C)            Thickness of film                

    D)            None of these

    Correct Answer: C

    Solution :

               For viewing interference in oil films or soap bubble, thickness of film is of the order of wavelength of light.


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