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VIT Engineering VIT Engineering Solved Paper-2008

  • question_answer
    If the speed of a wave doubles as it passes from shallow water into deeper water,  its wavelength will be

    A)  unchanged     

    B)  halved

    C)  doubled       

    D)  quadrupled  

    Correct Answer: C

    Solution :

    Since frequency remains unchanged \[v=v\] \[\frac{v}{\lambda }=\frac{v}{\lambda }\] \[\frac{v}{\lambda }=\frac{2v}{\lambda }\] \[\lambda =\frac{2v}{v}\lambda \] \[\lambda =2\lambda \] Hence, its wavelength will become twice.


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