Question

how travel electromagnetic wave​

Answer 1

Answer:

Propagation of an Electromagnetic Wave

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.

Explanation:

HOPE IT HELPS......

Answer 2

Answer:

definition of electromagnetic wave:

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.

in water:

• Electromagnetic propagation through water is very different from propagation through air because of water's high permittivity and electrical conductivity. Plane wave attenuation is high compared to air, and increases rapidly with frequency.

in vaccum:

• 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.

Speed:

• 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.