# What is an electromagnetic wave How does it behave?

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Electromagnetic radiation, is a form of energy emitted by moving charged particles. As it travels through space it behaves like a wave, and has an oscillating electric field component and an oscillating magnetic field. These waves oscillate perpendicularly to and in phase with one another.

## How do electromagnetic waves behave?

Light waves across the electromagnetic spectrum behave in similar ways. When a light wave encounters an object, they are either transmitted, reflected, absorbed, refracted, polarized, diffracted, or scattered depending on the composition of the object and the wavelength of the light.

## What is electromagnetic wave how it works?

Electromagnetic waves are waves which can travel through the vacuum of outer space. … This vibration creates a wave which has both an electric and a magnetic component. An electromagnetic wave transports its energy through a vacuum at a speed of 3.00 x 108 m/s (a speed value commonly represented by the symbol c).

## How do mechanical and electromagnetic waves behave?

Mechanical waves cause oscillations of particles in a solid, liquid or gas and must have a medium to travel through. Electromagnetic waves cause oscillations in electrical and magnetic fields. It is important to remember that all waves transfer energy but they do not transfer matter .

## What is waving in an electromagnetic wave?

Unlike mechanical waves, which need the oscillating particles of a medium such as water or air to be transmitted, electromagnetic waves require no medium. What’s “waving” in an electromagnetic wave are the electric and magnetic fields.

## What are the characteristics of light and how does it normally behave?

The primary properties of light are intensity, propagation direction, frequency or wavelength spectrum and polarization. Its speed in a vacuum, 299 792 458 metres a second (m/s), is one of the fundamental constants of nature.

## What do you want to know about electromagnetic waves?

An electromagnetic wave is a traveling wave composed of oscillating electric and magnetic fields. … Here’s why that’s important: It means that an electromagnetic wave can propagate in a vacuum, no medium necessary. It means electromagnetic waves can traverse the great expanse of nothingness between the sun and the earth.

## Is electromagnetic a wave?

Electromagnetic waves are transverse waves. That means the electric and magnetic fields change (oscillate) in a plane that is perpendicular to the direction of propagation of the wave. Also note that electric and magnetic fields in an EM wave are also perpendicular to each other.

## What makes EM waves unique?

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.

## Which of the following is a characteristic of electromagnetic waves?

The inherent characteristic of an electromagnetic wave is its frequency. Their frequencies remain unchanged but its wavelength changes when the wave travels from one medium to another. Electromagnetic wave follows the principle of superposition.

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## What is the difference between a mechanical wave and electromagnetic wave?

Electromagnetic waves can travel through a vacuum, that is an empty space, whereas mechanical waves cannot. … Electromagnetic waves travel at the speed of light but mechanical waves are far slower. Electromagnetic waves are called a disturbance, and mechanical waves are known as a periodic disturbance.

## What is electromagnetic wave and mechanical wave?

An electromagnetic wave is a wave that is capable of transmitting its energy through a vacuum (i.e., empty space). Electromagnetic waves are produced by the vibration of charged particles. … A mechanical wave is a wave that is not capable of transmitting its energy through a vacuum.

## Which is an example of an electromagnetic wave?

Radio waves, microwaves, visible light, and x rays are all examples of electromagnetic waves that differ from each other in wavelength. … These waves are also called “electromagnetic radiation” because they radiate from the electrically charged particles.