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A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude of the maximum electric field in this electromagnetic wave is given by:[Given permittivity of free space ε0=9×10−12 SI units, Speed of light c=3×108 m/s] |
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Answer» A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude of the maximum electric field in this electromagnetic wave is given by: |
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