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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
State three factors on which the rate of emission of electrons from a metal surface depends
Complete the diagram as given above by drawing the deflection of radioactive radiations in an electric field
What is meant by radioactivity?
Give a scientific explanation.
When the radiation coming out from a certain radioactive substance is passed through an electric field, marks are found at three places on the photographic plate placed in its path.
What kind of change takes place in a nucleus when a β -particle is emitted?
Define the term radioactivity.
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?
Complete the following radioactive reaction:
\[\ce{^-_-X -> ^-_-Y + ^4_2He -> ^234_91Z + ^0_-1e}\]
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