what is meant by radioactive rays
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Radoactive rays are rays those are emitted from a radioactive material. Main radioactive rays are Alpha ray, Beta ray and Gamma ray.
Alpha ray: it is a helium neucleus. that means a helium ion with 2 positive ions(He2+).
Beta ray: it is a beam of high speed electrons.
Gamma ray: this type of radiation is not charged particles like alpha or beta. rather it is an electromagnatic ray or simply photon having frequency more than 10 to the power 19 Hz.
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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: electromagnetic radiation, such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma radiation (γ)
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