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JIPMER Jipmer Medical Solved Paper-2013

  • question_answer
    Progressive waves are represented by the equation \[{{y}_{1}}=a\sin \,(\omega \,t-x)\] and        \[{{y}_{2}}=b\,\,\cos \,(\omega \,t-x)\] The phase difference between waves is

    A)  \[0{}^\circ \]                                     

    B)         \[45{}^\circ \]

    C)         \[90{}^\circ \]                                  

    D)         \[180{}^\circ \]

    Correct Answer: C

    Solution :

    \[{{y}_{1}}=a\sin \,(\omega t-x)\]      \[=a\cos \left( \frac{\pi }{2}+x-\omega t \right)\] and \[{{y}_{2}}=b\,\,\cos \,(\omega t-x)\] Phase difference\[\Delta \theta =\frac{\pi }{2}\]


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