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JEE Main & Advanced Physics Wave Mechanics Question Bank Progressive Waves

  • question_answer
    A wave is represented by the equation : \[y=a\sin (0.01x-2t)\] where a and x are in cm. velocity of propagation of wave is  [EAMCET 1994; AIIMS 2000; Pb. PMT 2003]

    A)            10 cm/s                                  

    B)            50 cm/s

    C)            100 cm/s                                

    D)            200 cm/s

    Correct Answer: D

    Solution :

               \[v=\frac{\omega }{k}=\frac{\text{Co}-\text{efficient}\ \text{of}\ t}{\text{Co}-\text{efficient}\ \text{of}\ x}=\frac{2}{0.01}=200\]\[cm/\sec \].


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