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JEE Main & Advanced Physics Wave Mechanics Question Bank Interference and Superposition of Waves

  • question_answer
    There is a destructive interference between the two waves of wavelength l coming from two different paths at a point. To get maximum sound or constructive interference at that point, the path of one wave is to be increased by                                                                                            [MP PET 1985]

    A)            \[\frac{\lambda }{4}\]      

    B)            \[\frac{\lambda }{2}\]

    C)            \[\frac{3\lambda }{4}\]    

    D)            \[\lambda \]

    Correct Answer: B

    Solution :

               With path difference\[\frac{\lambda }{2}\], waves are out of phase at the point of observation.


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