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प्रश्न
What do you mean by electron emission?
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उत्तर
Free electrons leave the metal surface only if sufficient energy is supplied to the metal. This emission of electrons from metal surface is called the electron emission.
संबंधित प्रश्न
Name the radiations which are absorbed by greenhouse gases in the earth’s atmosphere.
Represent the change in the nucleus of a radioactive element when a β particle is emitted.
Under which conditions does the nucleus of an atom tend to radioactive?
Give one example of isobars.
When is said to be the nucleus unstable?
Define the term radioactivity.
A radioactive substance is oxidized. What changes would you expect to take place in the nature of radioactivity? Explain your answer.
In a cathode ray tube state. How is it possible to increase the rate of emission of electrons.
