Light pressure is the pressure that is produced by electromagnetic light waves incident on the surface of a body. The existence of pressure was predicted by J. Maxwell in his electromagnetic theory of light.
If, for example, an electromagnetic wave falls on a metal, then under the action of an electric field of a wave with an intensity E -> the electrons of the surface layer of the metal will move in the direction opposite to the vector E, with a velocity v = const. The magnetic field of a wave with induction B acts on moving electrons with a Lorentz force F in a direction perpendicular to the metal surface (according to the left-hand rule) The pressure p exerted by a wave on the metal surface can be calculated as the ratio of the resultant Lorentz forces acting on free electrons in the surface layer metal to the surface area of the metal.
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