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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.
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संबंधित प्रश्न
Arrange α, β, and γ rays in ascending order with respect to their
1) Penetrating power.
2) Ionising power
3) Biological effect
In the following fig. shows a radioactive source S in a thick lead container. The radiations pass through an electric field between the plates P and Q. Complete the diagram to show the paths of α , β and γ radiations.
Why is the source S placed in a thick lead container?
Draw a diagram of a simple atom showing the nucleus and electrons. In this atom:
(a) What type of charge will there be on the nucleus?
(b) What is the value of this charge?
State three safety precautions that you would take while handling the radioactive substances.
What are the types of emission?
State two properties that a substance should possess when used as a thermionic emitter.
Are all the radiations viz. α, β and γ emitted in a single radioactive decay?
Two radioactive nuclei are represented by xAp and yAq and when p and q are mass numbers and x, y are the atomic number. How can the products be represented, i .e., what are the new values of p, q. x and y after the emission of an α-particle and a β-particle from A and B respectively.
