Properties of electromagnetic waves

Latest: NEET 2024 Paper Analysis Recommended: NEET Rank Predictor 2024 See more: NEET Result 2024 The Rayleigh-Jeans Law of radiation gives us the intensity of radiation released by a black body. The law states that the intensity of the radiation emitted by a black body is directly proportional to the temperature and inversely proportional to the wavelength raised […]

The phenomenon where electrically charged particles from the metal are emitted after it absorbs electromagnetic radiation is the definition of the photoelectric effect. The effect is described as electron ejection from a metal plate. It is one of the fundamental concepts in modern physics as it provides an answer to one of the most pressing

Introduction Radio waves are Generally a type of electromagnetic radiation with the longest wavelengths in the electromagnetic spectrum, with a frequency of 300 gigahertz (GHz) and below. At 300 GHz, the corresponding wavelength is 1 mm (shorter than rice grains); at 30 Hz the corresponding wavelength is 10,000 km (longer than the radius of the

In 1808, Etienne Louis Malus (1775-1812) observed the birefringence of a piece of calcite while looking at two images of the setting sun, one faint and the other relatively bright. He suggested and related the word Polarisation to this property of light, the orientation of the preferred direction of light to the poles of the

Introduction Light waves are called plane polarised light when they vibrate in one plane, and the direction of their electric field remains constant with their motion. Polarised light is produced during normal optical processes by bending light rays, including absorption, refraction, reflection, deflection (or distribution), and birefringence (same spot). The reflected light is usually partially

A photon is a type of tiny particle composed of various waves of electromagnetic radiation. Maxwell, in an experiment, found out that photons are simple electric fields that travel through space, have particularly no charge or resting mass and mainly travel at the speed of light. Photons are mainly emitted through charged particle actions, besides

Permittivity and permeability are two concepts used in electromagnetic theory. Permittivity is a notion connected to the formation of an electric field, whereas permeability is a concept related to the formation of a magnetic field. Permittivity and permeability are two electromagnetic theory concepts. Permittivity has to do with the formation of an electric field, while

Electromagnetic waves are generally known as light and obey the laws of optics. The physical interaction of electric charges, magnetic moments, and the Electromagnetic field is called geomagnetism. The field can be static or changing. Light is an electromagnetic wave and it obeys the laws of optics. Oersted’s law states that an electric current creates

Electromagnetic waves are radiated by accelerating charged particles. Radio waves have the longest wavelengths among electromagnetic waves. The frequency of radio waves is 300 GHz and less.  Electromagnetic waves were discovered by the Scottish mathematician and physicist James Clerk Maxwell. His mathematical theory, now famously called Maxwell’s equation, predicted the existence of electromagnetic waves by

Modulation Modulation, in PHYSICS, is a method for impressing information (voice, music, picture, or data) on a radio-frequency carrier wave with the aid of using various one or more traits of the wave in accordance with the intelligence signal. There are numerous types of modulation, every type designed to regulate a specific function of the