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प्रश्न
How is a zinc sulphide screen affected when a cathode ray beam strikes it?
उत्तर
When a cathode ray beam strikes a zinc sulphide screen, a bright spot is seen on the screen.
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संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube.
State the approximate voltage used to heat the filament
State the energy conversion taking place in a cathode ray tube
Write one use of cathode ray tube.
Name the unit in which the work function of a metal is expressed.
Give a scientific explanation.
When the radiation coming out from a certain radioactive substance is passed through an electric field, marks are found at three places on the photographic plate placed in its path.
What are the types of emission?
What do you understand by the term radioactivity?
State one use of radio-isotopes.
Mention one important function of ear main parts:
State the principle on which the functioning of a nuclear reactor is based.
The activity of a certain radionuclide decreases to 15 percent of its original value in 10 days. What is its half life?
[ln (0.15) = -1.9]
