UGC-NET | UGC NET CS 2015 Jun – III | Question 18

Match the following:

List – I	List – II
(a) Flood Gun	(i)An electron gun designed to flood the entire screen with electrons.
(b)Collector	(ii)Partly energised by flooding gun, stores the charge generated by the writing gun.
(c)Ground	(iii)Used to discharge the collector.
(d)Phosphorus grains	(iv)Used in memory – tube display and similar to those used in standard CRT.
(e)Writing Gun System	(v)Used in memory – tube display and basically the same as the electron gun used in a conventional CRT.

codes:

	(a)	(b)	(c)	(d)	(e)
(1)	(i)	(ii)	(iii)	(iv)	(v)
(2)	(ii)	(iii)	(i)	(iv)	(v)
(3)	(iii)	(i)	(ii)	(v)	(iv)
(4)	(iv)	(v)	(i)	(ii)	(iii)

(A) (1)
(B) (2)
(C) (3)
(D) (4)


Answer: (A)

Explanation:

Flood Gun an electron gun designed to flood the entire screen with electrons.

Collector partly energised by flooding gun, stores the charge generated by the writing gun.

Ground used to discharge the collector.

Phosphorus grains used in memory – tube display and similar to those used in standard CRT.

Writing Gun System used in memory – tube display and basically the same as the electron gun used in a conventional CRT.

So, option (A) is correct.

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