تعريف radiation pressure في الإنجليزية الإنجليزية القاموس.
the pressure exerted by electromagnetic radiation on an object on which it impinges, as a consequence of its momentum
Pressure on a surface resulting from electromagnetic radiation that impinges on it. The pressure is a result of the momentum carried by the radiation. When radiation is reflected rather than absorbed, the radiation pressure is doubled. Radiation pressure can sometimes be great enough to produce a force that is useful
the minute pressure exerted on a surface normal to the direction of propagation of a wave