ACtE08 · Chapter 8Mock Test 01🏛️ Past Licensure QuestionID: 546807a7
Persistence of vision refers to:
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 optical phenomenon where an image perceived by the human eye lingers on the retina for a fraction of a second (approximately 1/16th to 1/25th of a second) after the light source or object is removed. This biological property allows the brain to fuse a sequence of discrete still frames into the perception of continuous, fluid motion, forming the foundational principle behind animation, cinema, and computer graphics displays.
Option Analysis:
•
Option A (The time it takes for a pixel to change color): Incorrect; this defines display response time, a hardware characteristic.
•
Option B (The ratio of width to height in an image or screen): Incorrect; this defines aspect ratio (e.g., 16:9, 4:3).
•
Option C (The ability of the human eye to retain an image for a short time after it has disappeared): Correct; this is the precise physiological definition of persistence of vision.
•
Option D (The maximum resolution a display can support): Incorrect; this describes display resolution or spatial resolution.
Reference: Mock Test 01NEC Licensure Syllabus