UGC-NET | UGC NET CS 2015 Dec – III | Question 67

Which of the following is/are the principle components of a memory-tube display ?
(a)Flooding gun
(b)Collector
(c)Phosphorus grains
(d)Ground
Codes:

(A) (a) and (b)
(B) (c) only
(C) (d) only
(D) All the above

Answer: (D)
Explanation: The principle components of a memory-tube display are flooding gun, collector, phosphorus grains and ground.
So, option (D) is correct.
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