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प्रश्न
Answer the following questions based on a hot cathode ray tube.
What will happen to the beam when it passes through the electric field?
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उत्तर
When an electric field is produced between the two plates, the electron beam on entering the space between the plates gets deflected towards the positive plate. Because the electric field is normal to the direction of motion of electrons, electrons of the beam follow a parabolic path.
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संबंधित प्रश्न
State the energy conversion taking place in a cathode ray tube
Represent the change in the nucleus of a radioactive element when a β particle is emitted.
Give one example of isobars.
An electromagnetic radiation is used for photography in fog. [2]
(i) Identify the radiation.
(ii) Why is this radiation mentioned by you, ideal for this purpose ?
When is said to be the nucleus unstable?
What happens to the atomic number of element when (i) An α -particle, (ii) A β -particle 1 and (iii) γ-radiation is emitted?
How is a cathode ray tube used to convert an electrical signal into a visual signal?
Two radioactive nuclei are represented by xAp and yAq and when p and q are mass numbers and x, y are the atomic number. How can the products be represented, i .e., what are the new values of p, q. x and y after the emission of an α-particle and a β-particle from A and B respectively.
It is advised not to touch a radioactive substance by hand. Give reason.
