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प्रश्न
State the penetrating range of α, β and γ radiations.
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उत्तर
The penetrating power of α particle is least. Penetrating power of β
particles is less but 100 times more than that of a particle. γ radiations have
maximum penetration power. They are 100 times more penetrating than β
particles.
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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
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Complete the diagram as given above by drawing the deflection of radioactive radiations in an electric field
When is said to be the nucleus unstable?
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.
Define free electrons.
What do you mean by electron emission?
A certain nucleus has a mass number 20 and atomic number 9. Find the number of neutrons and protons present in it.
Explain, why radium paint, consisting of zinc sulphide and a trace of radium salt, glows in the dark?
When an α-particle of mass m moving with velocity ν bombards on a heavy nucleus of charge Ze, its distance of closest approach from the nucleus depends on m as:
