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Electromagnetic Wave: Electromagnetic waves are a self-propagating transverse wave of oscillating electric and magnetic fields. The direction of the electric field is indicated in blue, the magnetic field in red, and the wave propagates in the positive x-direction.
- 16.3: Plane Electromagnetic Waves
An electromagnetic wave consists of an electric field,...
- 16.3: Plane Electromagnetic Waves
An electromagnetic wave consists of an electric field, defined as usual in terms of the force per charge on a stationary charge, and a magnetic field, defined in terms of the force per charge on a moving charge. The electromagnetic field is assumed to be a function of only the x-coordinate and time.
Electromagnetic waves and matter waves are both forms of wave-like behavior observed in the field of physics. Electromagnetic waves, such as light, radio waves, and X-rays, are oscillations of electric and magnetic fields that can travel through a vacuum.
- Radio Waves
- Microwaves
- Infrared
- Visible Light
- Ultraviolet
- X-Rays
- Gamma Rays
As the name suggests, radio waves are emitted by radiostations, TV stations, and cellphone towers. They have a wavelength range of 1-105meters.
Microwaves are used to broadcast information through spaceas they can penetrate through clouds and light rain. They are also used to heatfood, which led to the invention of the microwave oven.
Infrared radiation is thermal radiationthat carries heat.They are used in many infrared devices and remote sensing for weatherconditions.
Light is the only part of the electromagnetic spectrum thatis visible to the human eye. The eye perceives light as a combination ofseveral colors of different wavelengths. Light is made up of seven colors –violet, indigo, blue, green, yellow, orange, and red.
Ultraviolet light is emitted by the sun and is responsiblefor sunburn. They are used in “black lights” that make objects glow.
X-rays are used for medical purposes. They can penetratethrough the skin and tissue and reveal a detailed structure of the interior.
Distant astronomical bodies emit high energy gamma rays. They are also produced in the laboratory by bombarding subatomic particles with protons and neutrons and during a nuclear explosion.
Aug 10, 2016 · Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.
Jan 26, 2023 · An electromagnetic wave is a type of energy that travels through space, while an electromagnetic field is a physical field that can exist in a given point in space. The electromagnetic wave is created by oscillating electric and magnetic fields and the electromagnetic field is created by the movement of charged particles.
People also ask
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How are electromagnetic waves created?
Electromagnetic waves are created as a result of vibrations between an electric and a magnetic field. In this article, we will explore the definition and formation of electromagnetic waves along with the graphical and mathematical representations of electromagnetic waves in detail.