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Do electromagnetic waves carry energy and momentum? |
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Answer» SOLUTION :Yes, As Electromagnetic waves contain both electric and magnetic field, there is a non- zero energy DENSITY ASSOCIATED with it. E = `(hc)/(lambda)` Momentum p `= ("Total energy transferred to the surface ")/("Velocity of light in vacuum")` i.e.p `= (U)/(c )` = mc. U - total energy transfered to the surface . EM waves carries not only energy and momentum but also angular momentum. |
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