4. The colour of the spot on the screen of a CRO is a characteristic of :
(a) Electron gun in a CRT (b) The type of the waveform being observed (c) The coating material on the screen (d) The velocity of the electrons striking the screen
Answer
Answer : (c)
Explanation
Explanation : No answer description available for this question. Let us discuss.
CRO » Exercise - 1 10. A dual - trace CRO has : (a) one electron gun (b) two electron guns (c) one electron gun and two- pole switch (d) two electron guns and two- pole switch