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प्रश्न
From α, β and γ-rays, name the one which travels with the speed of light?
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उत्तर
γ-rays travel with the speed of light.
संबंधित प्रश्न
Why do Free electrons not leave the metal surface on their own
State any two precautions to be taken while handling radioactive substances.
What do you mean by Mass number.
What happens to the atomic number of element when (i) An α -particle, (ii) A β -particle 1 and (iii) γ-radiation is emitted?
An element P disintegrates by α - -emission and the new element suffers two further disintegrations, both by β -emission, to form an element Q. Explain the fact that P and Q are the isotopes.
What is meant by Radioactivity?
Name the Different Radiations Which Are Emitted by the Radioactive Substances.
Are all the radiations mentioned by you, emitted in a single radioactive decay?
It is advised not to touch a radioactive substance by hand. Give reason.
A radioctive sample decays `7/8` times its original quantity in 15 minutes. The half-life of the sample is ______.
Calculate the time interval between 33% decay and 67% decay if half-life of a substance is 20 minutes.
