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. Explain.
In electromagnetic wave, the electric field is oscillating, so the resultant electric force on the particle will be zero, as the direction of electric force changes every half of time period. As the electric field vibrates, the radiation of energy will takes place only due to vibrating electric and magnetic field.
