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प्रश्न
What is meant by Radioactivity?
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उत्तर
Process of spontaneous emission of α or β and γ radiations from the nuclei of atoms during their decay.
संबंधित प्रश्न
Name the radiations which are absorbed by greenhouse gases in the earth’s atmosphere.
In a cathode ray tube, what is the function of anode?
What do you mean by Atomic mass
Give the relative ionizing power of α, β and γ radiations.
What kind of change takes place in a nucleus when a β -particle is emitted?
Define the term radioactivity.
Radioactive substances were found to give off three types of rays. Name them. How do they
(a) React to the magnetic field?
(b) React to the electric field?
(c) Act when different thickness of lead sheets is placed in their path?
What are the uses of radioactive isotopes in following?
(a) Medical field,
(b) Agriculture,
(c) Industries?
A radioactive nucleus `""_"Z"^"A"` X first emits a beta particle and then an alpha particle to give the resulting nucleus `""_"Q"^"P"` Y What will be the values of P and Q in terms of A and Z?
Name the Different Radiations Which Are Emitted by the Radioactive Substances.
Are all the radiations mentioned by you, emitted in a single radioactive decay?
