# Explain the phenomenon of light pressure. What theory – wave or corpuscular – explains this phenomenon?

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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