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can em waves travel through a perfect vacuum

can em waves travel through a perfect vacuum插图

Most of the wave we are familiar with in everyday life travel through something (air, water, rock, etc.).ElectromagneticElectromagnetismElectromagnetism is a branch of physics which involves the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles. The electromagnetic force usually shows electromagnetic fields, such as electric fields, magnetic fields, and light. The electromagnetic force is one of the four fundamental interactions in nature.en.wikipedia.orgwaves(light), however, can travel through a perfect vacuum. This is because it is really two wave together, each helping the other along.

Do electromagnetic waves need a medium to travel?

Electromagnetic waves do not need a medium to travel; they may simply flow through vacuum, which is close to it. From the source of the disturbance, electromagnetic waves radiate outward in all directions. The waves then continue to move until they are disrupted by anything. Similarly, How do electromagnetic waves travel through a medium?

What happens when an electromagnetic wave strikes a physical substance?

An electromagnetic wave first strikes the atoms of a physical substance, which absorb it. Vibrations. The electrons inside this atom begin to vibrate as a result of the electromagnetic energy being absorbed. Release. What can all waves travel through? A mechanical wave is an example of a water wave.

What is a mechanical wave?

A mechanical wave is one that does not have the ability to convey its energy via a vacuum. To convey their energy from one spot to another, mechanical waves need a medium. A mechanical wave is an example of a sound wave. In a vacuum, sound waves are unable to propagate.