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प्रश्न
Mention one important function of ear main parts:
State the principle on which the functioning of a nuclear reactor is based.
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उत्तर
(i) Electron gun gives out fine beam of electrons.
(ii) The deflecting system deflect electron beam in horizontal and vertical direction.
(iii) The fluorescent screen gives bright spot on stirking of electron.
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संबंधित प्रश्न
Write one use of cathode ray tube.
In a cathode ray tube state:
(i) the purpose of covering cathode by thorium and carbon.
(ii) the purpose of the fluorescent screen.
(iii) how is it possible to increase the rate of emission of electrons.
What do you mean by Mass number.
Explain the use of radioactive in the field of medicine, agriculture and industry.
A nucleus is \[\ce{^24_11 Na}\] β-radioactive.
Write the equation represent β-decay.
How is a zinc sulphide screen affected when a cathode ray beam strikes it?
Are all the radiations viz. α, β and γ emitted in a single radioactive decay?
88Ra226 experiences three α - decay. Find the number of neutrons in the daughter element.
If 10% of a radioactive substance decays in every 5 years, then the percentage of the substance that will have decayed in 20 years will be ______.
