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प्रश्न
Give the relative ionizing power of α, β and γ radiations.
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उत्तर
Ionisation power of a particle is maximum. It is about 100 times more than that of β particles. Ionisation power of β particle is about 100 times more than that of γ radiations. γ radiations have least ionisation power.
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संबंधित प्रश्न
When does the nucleus of an atom tend to become radioactive?
State three factors on which the rate of emission of electrons from a metal surface depends
Give one example of isobars.
State two dissimilarities between the γ-rays and X-rays.
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?
What happens to the position of an element in the periodic table when it emits an alpha particle
State three safety precautions that you would take while handling the radioactive substances.
In a cathode ray tube state the purpose of the fluorescent screen.
It is advised not to touch a radioactive substance by hand. Give reason.
Assertion (A): The force of repulsion between atomic nucleus and α-particle varies with distance according to inverse square law.
Reason (R): Rutherford did α-particles scattering experiment.
