Which configuration setting directly affects flicker?
1. >>Refresh rate
2. Aspect ratio
3. Dot pitch
4. Resolution
Explanation : The refresh rate directly affect screen flicker. Refresh rate is measured in Hertz (Hz), which is the number of times per second that the screen is refreshed. The higher the refresh rate, the less likely that the screen will have noticeable flicker. Flicker is usually not noticed when the refresh rate is configured at a rate of 72 Hz or higher.
The screen resolution does not affect flicker. Resolution refers to the number of pixels on the screen. VGA resolution starts at 800 X 600 pixels and ranges up from there. For example, 21-inch monitors are typically designed to provide optimal display at a resolution of 1280 X 1024.
The dot pitch refers to the distance between colors dots of the same color on the screen. This value is measured in millimeters. The lower the number, the clearer the picture. Dot pitch ranges from 0.15 mm and 0.30 mm, with typical ranges between 0.22 mm and 0.26 mm.
The aspect ratio refers to the ratio between the horizontal and vertical screen sizes. A standard CRT monitor as a 4:3 aspect ratio.
Objective: Personal Computer Components
