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प्रश्न
In a cathode ray tube state the purpose of the fluorescent screen.
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उत्तर
Fluorescent screen helps to obtain images on the screen by converting electrical signals to light (or) visual signals by ionizing radiations to light waves.
संबंधित प्रश्न
Name the radiations which are absorbed by greenhouse gases in the earth’s atmosphere.
How can they be made to leave the metal surface? (State any two ways)
Write one use of cathode ray tube.
What is thermionic emission?
Complete the diagram as given above by drawing the deflection of radioactive radiations in an electric field
A radioactive substance is oxidized. What changes would you expect to take place in the nature of radioactivity? Explain your answer.
A radioactive source emits three types of radiations.
Name the radiation which has the highest ionizing power.
What happens to the position of an element in the periodic table when it emits an alpha particle
Mention one important function of ear main parts:
State the principle on which the functioning of a nuclear reactor is based.
88Ra226 experiences three α - decay. Find the number of neutrons in the daughter element.
