2. Solved Papers
  3. CET Karnataka Medical

CET Karnataka Medical CET - Karnataka Medical Solved Paper-2009

  • question_answer
    For the constructive interference the path difference between the two interfering waves must be equal to

    A) \[\left( 2n+1 \right)\lambda \]

    B)  \[2n\pi \]

    C)  \[n\lambda \]

    D)  \[\left( 2n+1 \right)\frac{\lambda }{2}\]

    Correct Answer: C

    Solution :

    Phase difference,\[\Delta \phi =\frac{2\pi }{\lambda }\Delta x\] In a constructive interference,\[\Delta \phi =2n\pi \]where n = 0,1, 2, 3,... \[\therefore \] \[2n\pi =\frac{2\pi }{\lambda }\Delta x\] or \[\Delta x=n\lambda \]


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