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प्रश्न
State two similarities and two dissimilarities between the γ-rays and X-rays.
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उत्तर
Similarities:
Both ?-radiations and X-rays affect photographic plate, both travel with the speed of light.
Dissimilarities:
?-radiations are obtained in emissions from the radioactive substances due to energy change in the nucleus of their atoms and X- rays are obtained when highly energetic cathode rays are stopped by a heavy metal target of high melting point.
?-radiations have high penetration power but X-rays do not have have very high penetration power.
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संबंधित प्रश्न
State three factors on which the rate of emission of electrons from a metal surface depends
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