Physics > Electromagnetic Waves > 2.0 Electromagnetic Waves
Electromagnetic Waves
1.0 Introduction
2.0 Electromagnetic Waves
2.1 Properties of electromagnetic waves
2.2 Production of electromagnetic waves
2.3 Energy density of electromagnetic waves
2.4 Intensity of electromagnetic waves
2.5 Momentum of electromagnetic waves
2.6 Radiation pressure
2.7 Poynting vector
2.8 Electromagnetic spectrum
2.6 Radiation pressure
2.2 Production of electromagnetic waves
2.3 Energy density of electromagnetic waves
2.4 Intensity of electromagnetic waves
2.5 Momentum of electromagnetic waves
2.6 Radiation pressure
2.7 Poynting vector
2.8 Electromagnetic spectrum
It is defined as the pressure exerted by the electromagnetic wave on a surface.
If $I$ is the intensity of the incident electromagnetic radiation, then the radiation pressure for normal incidence is,
Perfectly absorbing surface, $${P_{radiation}} = \frac{I}{c}$$
Perfectly reflecting surface, $${P_{radiation}} = \frac{2I}{c}$$
