# Do electromagnetic waves need a medium?

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## Why can electromagnetic waves travel without a medium?

An EM wave can travel without a material medium—that is, in a vacuum or space empty of matter—and does not lose energy as it moves. In theory, an EM wave can travel forever. Because they do not need a medium, EM waves can pass through outer space, which is a near vacuum.

## What waves do require a medium?

Mechanical waves require a medium in order to transport their energy from one location to another. A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum.

## Which electromagnetic radiation needs a medium travel?

Propagation of an Electromagnetic Wave

Mechanical waves, unlike electromagnetic waves, require the presence of a material medium in order to transport their energy from one location to another. Sound waves are examples of mechanical waves while light waves are examples of electromagnetic waves.

## Do you not need any medium?

Answer: Electromagnetic waves ( e.g. light) do not require any medium.

## Why electromagnetic waves are transverse?

Electromagnetic waves are also transverse waves because the direction of particle displacement is also perpendicular to the direction of movement, producing the waveform of visible light, and other types of electromagnetic radiation.

## Which waves do not need a medium?

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.

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## Is electromagnetic waves are transverse in nature?

Due to the perpendicular directions of the electric and magnetic fields to each other and also to the direction of propagation of the wave, the electromagnetic wave is transverse in nature.