Which of the following is/are the principal components of a memory-tube display ? (a)Flooding gun (b)Collector (c)Phosphorus grains (d)Ground Correct Answer: D Question 50 Explanation: A […]
Find the missing number in the following series. 0, 7, 26, 63, ______, 215, 342 Correct Answer: D Question 8 Explanation: Pattern is: 13-1=0 23-1=7 33-1=26 […]