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JEE Main & Advanced Physics Wave Mechanics Question Bank Progressive Waves

  • question_answer
    The relation between time and displacement for two particles is given by            \[{{y}_{1}}=0.06\sin 2\pi (0.04t+{{\varphi }_{1}})\], \[{{y}_{2}}=0.03\sin 2\pi (1.04t+{{\varphi }_{2}})\] The ratio of the intensity of the waves produced by the vibrations of the two particles will be     [MP PMT 1991]

    A)            2 : 1                                          

    B)            1 : 2

    C)            4 : 1                                          

    D)            1 : 4

    Correct Answer: C

    Solution :

               \[I\propto {{A}^{2}}\propto \frac{1}{{{d}^{2}}}\]Þ \[A\propto \frac{1}{d}\]


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