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JEE Main & Advanced Physics Wave Mechanics Question Bank Progressive Waves

  • question_answer
    The displacement of a particle is given by \[y=5\times {{10}^{-4}}\sin (100t-50x)\], where x is in meter and t in sec, find out the velocity of the wave     [CPMT 1982]

    A)            5000 m/sec                           

    B)            2 m/sec

    C)            0.5 m/sec                               

    D)            300 m/sec

    Correct Answer: B

    Solution :

               \[v=\frac{\text{Co-efficient of }t}{\text{Co-efficient of }x}\]\[=\frac{100}{50}=2\,m/\sec \].


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