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JEE Main & Advanced Physics Wave Mechanics Question Bank Progressive Waves

  • question_answer
    The equation of progressive wave is \[y=a\sin (200\,t-x)\]. where  \[x\] is in meter and \[t\] is in second. The velocity of wave is                                                                         [RPMT 2000]

    A)            200 m/sec                              

    B)            100 m/sec

    C)            50 m/sec                                

    D)            None of these

    Correct Answer: A

    Solution :

               comparing the given equation with \[y=a\sin \left( \omega t-kx \right)\]                    \[\omega =200\,,\ \,k=1\] so \[v=\frac{\omega }{k}=200\]\[m/s\] 


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