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CMC Medical CMC-Medical Ludhiana Solved Paper-2010

  • question_answer
    If equation  of  a  sound  wave  is y = 0.0015 sin (62.8x + 314t) then its wavelength will be

    A)  2 unit                                   

    B)  0.3 unit

    C)  0.1 unit               

    D)  0.2 unit

    Correct Answer: C

    Solution :

                    Given equation of wave is \[y=0.0015\,\sin \,(62.8\,x+314\,t)\]       ?(i) Comparing given Eq. \[(i)\]with standard wave, we get \[\frac{2\pi }{\lambda }=62.8\] \[\Rightarrow \]               \[\lambda =\frac{2\pi }{62.8}\]                 \[=\frac{2\times 3.14}{62.8}=0.1\,unit\]


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