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J & K CET Medical J & K - CET Medical Solved Paper-2015

  • question_answer
    An observer standing near the sea-coast counts 48 waves per min. If the wavelength of the wave is 10 m, the velocity of the waves will be

    A)  8m/s            

    B)  12m/s

    C)  16m/s           

    D)  20m/s

    Correct Answer: A

    Solution :

     According to the question, Frequency, \[v=\frac{48}{60}Hz=\frac{4}{5}=0.8\,Hz\] Wavelength, \[\lambda =10\,m\] \[\therefore \]Wave velocity, \[v=v\lambda =(0.8)(10)\] \[=8m/s\]


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