In an electron gun, the control grid is given negative potential, relative to cathode in order to.

accelerate the electrons

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decrease KE of electrons

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repel the electrons

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decelerate the electrons

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Solution

The correct option is C repel the electrons
In an electron gun, the control grid is given a negative potential relative to cathode in order to repel the electrons so that a converging beam of electrons emerges from gun.

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The given diagram shows an electron gun of a hot cathode ray tube.

X and Y in the diagram respectively represent

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(i)

(i i)

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