J & K CET Engineering J and K - CET Engineering Solved Paper-2008

  • question_answer
    Two light sources are said to be of coherent nature

    A)  when they have same frequency and a varying phase difference

    B)  when they have same frequency and a constant phase difference

    C)  when they have constant phase difference and different frequencies

    D)  when they have varying phase difference and different frequencies

    Correct Answer: B

    Solution :

    Two coherent sources must have the same frequencies and a constant phase difference.


You need to login to perform this action.
You will be redirected in 3 sec spinner