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प्रश्न
It is advised not to touch a radioactive substance by hand. Give reason.
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उत्तर
The reason is that the radiations (α, β and γ) emitted by a radioactive substance have large penetrating power.
संबंधित प्रश्न
What are isobars?
A radioactive substance is oxidized. What changes would you expect to take place in the nature of radioactivity? Explain your answer.
Define free electrons.
How is a zinc sulphide screen affected when a cathode ray beam strikes it?
Name the Different Radiations Which Are Emitted by the Radioactive Substances.
Are all the radiations mentioned by you, emitted in a single radioactive decay?
Unit of radioactivity is _______
Which of the following statements is/are correct?
- α particles are photons
- Penetrating power of γ radiation is very low
- Ionization power is maximum for α rays
- Penetrating power of γ radiation is very high
88Ra226 experiences three α - decay. Find the number of neutrons in the daughter element.
Heavy radioactive elements eventually turn into ______.
Two radioactive sources A and B of half lives of 1 hour and 2 hours, respectively, initially contain the same number of radioactive atoms. At the end of two hours, their rates of disintegration are in the ratio of ______.
