RAJASTHAN ­ PET Rajasthan PET Solved Paper-2003

  • question_answer
    When light ray goes from air to water, then its quality that remains unchanged is

    A)  frequency       

    B)  wavelength

    C)  speed            

    D)  None of these

    Correct Answer: A

    Solution :

     When light goes from one medium to another medium, then its frequency remains unchanged.


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