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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2006

  • question_answer
    Light waves travel in vacuum along the y-axis. Which of the following may represent the wave front?

    A)  \[y=\]constant                               

    B)         \[x=\] constant

    C)         \[z=\] constant               

    D)        \[x+y+z=\] constant

    Correct Answer: A

    Solution :

    As velocity of light is perpendicular to the wavefront and light is travelling in vacuum along the \[y-\]axis, therefore, the wavefront is represented by\[y=\]constant.


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