RAJASTHAN ­ PET Rajasthan PET Solved Paper-2007

  • question_answer
    When light passes from one medium to other then which will not change?

    A)  Frequency       

    B)  Wavelength

    C)  Amplitude       

    D)  Velocity

    Correct Answer: A

    Solution :

     According to first law of refraction, whenever light goes from one medium to another; the frequency of light and phase of light do not change. However, the velocity of light and wavelength of light change.


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