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WB JEE Medical WB JEE Medical Solved Paper-2007

  • question_answer
    An observer standing near the sea shore/min. If the wavelength of the water wave is 10 m, then the velocity of water wave is

    A)  \[540\,m{{s}^{-1}}\]                      

    B)  \[5.4\,m{{s}^{-1}}\]

    C)  \[0.184\,m{{s}^{-1}}\]                  

    D)  \[9\,m{{s}^{-1}}\]

    Correct Answer: D

    Solution :

                     Frequency, \[n=\frac{54}{60}\] \[\Rightarrow \]               \[n=\frac{9}{10}\] \[\therefore \]velocity, \[v=n\lambda \]                 \[=\frac{9}{10}\times 10=9m/s\]


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