3. Radiations

In physics, Radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium. This includes :-

>> Particle Radiation

>> Acoustic Radiation

>> Seismic Waves

>> Electromagnetic Radiation

Particle Radiation

Emission or transmission of energy in the form of particles through space or through a material medium. They are of three types :-

>> Alpha (α) Radiation

A type of particle radiation made up of the nuclei of the helium atoms(⁴₂He⁺).

>> Beta (β) Radiation

A type of particle radiation made up of high energy electrons(e⁻) and positrons(e⁺).

>> Neutron Radiation

Another type of particle radiation made up of high energy neutrons.

Acoustic Radiation

Emission or transmission of energy through space or through a material medium in the form of mechanical waves such as ultra-sound, infra-sound and sound.

Seismic Waves

They are vibrating movement of the Earth's ground caused by underground explosions, volcanic eruptions and man-made explosions that can vibrate through the different layers of the Earth' ground.