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CMC Medical CMC-Medical VELLORE Solved Paper-2013

  • question_answer
    If the equation of transverse wave is\[y=5\,\sin 2\pi \left[ \frac{t}{0.04}-\frac{x}{40} \right],\] where distance is in cm and time in second and then the wavelength of the wave is

    A)  60 cm                                  

    B)  40 cm

    C)  35cm                                   

    D)  25cm

    Correct Answer: B

    Solution :

                    \[y=a\,\sin \,2\pi \left( \frac{t}{0.04}-\frac{x}{40} \right)\] \[y=a\,\sin \,2\pi \left( \frac{t}{T}-\frac{x}{\lambda } \right)\] \[\frac{x}{\lambda }=\frac{x}{40}\] \[\lambda =40\,cm\]


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