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J & K CET Engineering J and K - CET Engineering Solved Paper-2009

  • question_answer
    The equation \[y=A\,\,\sin \,k(vt-x)\] represents \[\left( k=\frac{2\pi }{\lambda } \right)\]

    A)   a plane progressive wave travelling along negative X-direction

    B)  a plane progressive wave travelling along positive X-direction

    C)  a stationary wave

    D)  a plane progressive wave travelling along positive Y-direction

    Correct Answer: B

    Solution :

    If the sign between t and x terms is negative the wave is propagating along positive X- axis and if the sign is positive, then the wave moves in negative X- axis direction.


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