Uttarakhand PMT Uttarakhand PMT Solved Paper-2005

  • question_answer
    Two waves are said to be coherent, if they have:

    A)  same frequency, phase and amplitude

    B) different phase and frequency and amplitude

    C)  same phase and different amplitude

    D)  same frequency but different amplitude

    Correct Answer: A

    Solution :

     The waves when frequency, phase and amplitude are same at a given time or at a given place are known as coherent waves.


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