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प्रश्न
How is a cathode ray tube used to convert an electrical signal into a visual signal?
उत्तर
In a CRT, the external P.D. refers to the electrical signal. The P.D. controls the deflection of electrons beam which strikes in the desired fashion direction and converts the electrical signal to visual signal.
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संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube
Name the charged particles
Under which conditions does the nucleus of an atom tend to radioactive?
State any two precautions to be taken while handling radioactive substances
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 happens to the atomic number of element when (i) An α -particle, (ii) A β -particle 1 and (iii) γ-radiation is emitted?
Define the term radioactivity. Of the three normally occurring radioactive radiations:
(a) Which has a positive charge?
(b) Which is most penetrating?
(c) Which has no electric charge?
How is a cathode ray beam affected while passing through a magnetic field?
What are ‘Becquerel rays’?
88Ra226 experiences three α - decay. Find the number of neutrons in the daughter element.
