Even though an electric field $E$ exerts a force $qE$ on a charged particle yet the electric field of an $EM$ wave does not contribute to the radiation pressure (but transfers energy). Explain.
Even though an electric field $E$ exerts a force $qE$ on a charged particle yet the electric field of an $EM$ wave does not contribute to the radiation pressure (but transfers energy). Explain.
Electric field of electromagnetic waves is an oscillating field and so the electric force caused by it on charged particle. This electric force averaged over an integral number of cycles is zero since its direction changes every half cycle. Hence electric field is not responsible for radiation pressure.
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