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12th Class Physics Sample Paper Physics Sample Paper-13

  • question_answer
    Express the speed of propagation of EM wave in terms of peak value of the electric and magnetic field.

    Answer:

    We know that, speed of electromagnetic wave, \[c=\frac{{{E}_{0}}}{{{B}_{0}}}\] Where, \[{{E}_{0}}=\] peak value of electric field And \[{{B}_{0}}=\] peak value of magnetic field.


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