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JEE Main & Advanced Physics EM Waves Question Bank Numerical Value Type Questions - Electromagnetic Waves

  • question_answer
    A 27 mW laser beam has a cross-sectional area of \[10\text{ }m{{m}^{2}}.\] The magnitude of the maximum electric field (in kV/m) in this electromagnetic wave is given by: [Given permittivity of space \[{{\in }_{0}}=9\times {{10}^{-12}}\] SI units. Speed of light \[c=3\times {{10}^{8}}m/s]\]

    Answer:

    1.4


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