ACtE08 · Chapter 8Mock Test 06🏛️ Past Licensure QuestionID: 5c4831ed
In computer graphics and video display systems, persistence of vision refers to:
In computer graphics and video display systems, persistence of vision refers to:
Multiple Choice Options
- A
The time it takes for a pixel to change color
- B
The ratio of width to height in an image or screen
- C✓ Correct Option
The ability of the human eye to retain an image for a short time after it has disappeared
- D
The maximum resolution a display can support
Detailed Technical Solution & Explanation
Persistence of vision is the physiological phenomenon whereby the human visual perception retains the optical impression of an illuminated image for approximately 1/16th to 1/25th of a second after the physical stimulus ceases. This retention enables sequential static frames refreshed at rates above 24–30 frames per second to merge seamlessly into continuous, flicker-free motion.
Option Analysis:
•
Option A (The time it takes for a pixel to change color): Defines pixel response time.
•
Option B (The ratio of width to height in an image or screen): Defines aspect ratio.
•
Option C (The ability of the human eye to retain an image for a short time after it has disappeared): Correct; standard physiological definition of persistence of vision.
•
Option D (The maximum resolution a display can support): Defines display spatial resolution.
Reference: Mock Test 06NEC Licensure Syllabus