# How fast do electromagnetic waves travel in miles?

Mar 8, 2020

## How fast do electromagnetic waves travel in miles?

The velocity of all electromagnetic waves is the same, 300,000 km/sec or 186,000 mi./sec in a vacuum. This is a result of the oscillating nature of the electromagnetic waves.

How far can electromagnetic waves travel?

As to how far they can travel in a vacuum, the electromagnetic force reaches to infinity. Radio waves are part of the electromagnetic spectrum, so the answer is any distance you care to mention. I think the furthest yet detected by radio telescopes have travelled nearly 14 billion miles.

Do electromagnetic waves travel at the speed of light or sound?

As such, they travel at the speed of light (ie 300,000 kilometres/186,000 miles per second) – a lot faster than the 340 metres (1,125 feet) per second that sound itself moves through the air.

### How do electromagnetic waves travel?

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.

Why electromagnetic wave can travel in vacuum?

The propagation of electromagnetic waves either in a certain medium or in vacuum is due the the mutual changes between the electric and magnetic field. These variations in electric and magnetic fields fields lead to the transfer of the energy which is carried by the EM wave.

What is the highest electromagnetic wave?

Gamma rays
Gamma rays have the highest energies and shortest wavelengths on the electromagnetic spectrum.

#### Do waves travel infinitely?

It depends on the medium through which the EM waves are travelling. In vacuum, the EM waves never lose energy, there is no attenuation in the amplitude of the waves and thus they keep travelling infinitely.

Does visible light travel in a vacuum?

Electromagnetic waves such as visible light travel at 300,000,000 (3 × 10 8) metres per second (m/s) through a vacuum. Some types of electromagnetic waves, like radio waves, microwaves, infrared waves, visible light and ultraviolet waves, can be reflected and refracted.

Can a wave travel in a vacuum?

Electromagnetic waves are waves which can travel through the vacuum of outer space. Mechanical waves, unlike electromagnetic waves, require the presence of a material medium in order to transport their energy from one location to another. Electromagnetic waves are created by the vibration of an electric charge.

## How do we know that electromagnetic waves can travel in a vacuum?

As we know electromagnetic waves are created by charges in motion or by magnetic field created by charged particles. And for the flow of field other charge carriers are required but vacuum does not contain any charged particles and how these waves are being carried forward after they have been produced from a source.

What is the speed at which sound waves travel?

Sound waves travel through air at the speed of approximately 1,100 feet per second; light waves travel through air and empty space at a speed of approximately 186,000 miles per second.

What is the speed of an electromagnetic wave?

Electromagnetic radiation is a type of energy that is commonly known as light. Generally speaking, we say that light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum. With that being said, what is the speed of electromagnetic waves in air?

### How are EM waves different from sound waves?

EM waves: EM waves travels with the speed of ms -1 . Sound waves: Speed of sound in air increases with the temperature. EM waves: Speed of EM waves in air is slightly slower than that of in a vacuum. Sound waves: Longitudinal sound waves aren’t polarizable.

How many meters per second does electromagnetic radiation travel?

Electromagnetic radiation is a type of energy that is commonly known as light. Generally speaking, we say that light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum.