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JEE Main & Advanced Physics Wave Mechanics Question Bank Progressive Waves

  • question_answer
    A wave travels in a medium according to the equation of displacement given by \[y(x,\,t)=0.03\sin \pi (2t-0.01x)\] where y and x are in metres and t in seconds. The wavelength of the wave is      [EAMCET 1994; CPMT 2004]

    A)            200 m                                      

    B)            100 m

    C)            20 m                                        

    D)            10 m

    Correct Answer: A

    Solution :

               Comparing with \[y=(x,\,t)=a\sin (\omega \,t-kx)\] \[k=\frac{2\pi }{\lambda }=0.01\pi \]Þ l = 200 m.


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