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प्रश्न
Why should a radioactive substance not be touched by hands?
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उत्तर
Radioactive substance should not be touched by hands because these radiations are harmful; when radiation falls on the human body, they kill the human living tissues and cause radiation burns.
संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube
Name the charged particles
Arrange α, β, and γ rays in ascending order with respect to their
1) Penetrating power.
2) Ionising power
3) Biological effect
Complete the diagram as given above by drawing the deflection of radioactive radiations in an electric field
What do you mean by Mass number.
What are the uses of radioactive isotopes in following?
(a) Medical field,
(b) Agriculture,
(c) Industries?
What is nucleus of an atom? Compare its size with that of the atom. Name its constitutents. How is the number of these constituents determined by the atomic number its atomic model.
Name the Different Radiations Which Are Emitted by the Radioactive Substances.
Are all the radiations mentioned by you, emitted in a single radioactive decay?
From α, β and γ-rays, name the one which travels with the speed of light?
A radioactive nucleus \[\ce{^A_ZX}\] undergoes spontaneous decay in the sequence \[\ce{^A_ZX -> _{Z-1 }B -> _{Z-3}C -> _{Z-2}D }\], where Z is the atomic number of element X. The possible decay particles in the sequence are ______.
Calculate the time interval between 33% decay and 67% decay if half-life of a substance is 20 minutes.
