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JEE Main & Advanced Physics Wave Mechanics Question Bank Progressive Waves

  • question_answer
    A transverse progressive wave on a stretched string has a velocity of \[10\,m{{s}^{-1}}\] and a frequency of 100 Hz. The phase difference between two particles of the string which are 2.5 cm apart will be                                                [MP PMT 1994]

    A)            \[\frac{\pi }{8}\]                 

    B)            \[\frac{\pi }{4}\]

    C)            \[\frac{3\pi }{8}\]               

    D)            \[\frac{\pi }{2}\]

    Correct Answer: D

    Solution :

               \[v=n\lambda \Rightarrow \lambda =10\,\,cm\]                    Phase difference \[\frac{2\pi }{\lambda }\times \]Path difference \[\frac{2\pi }{10}\times 2.5\]= \[\frac{\pi }{2}\]


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