Question

_______ is the number of times per second the pixels are recharged so that their glow remains bright.
1. Refresh rate
2. Resolution 
3. Pixel rate
4. Bit depth

Answer 1

Correct Answer - Option 1 : Refresh rate

The correct answer is the Refresh rate.

• Refresh rate is the number of times per second that the pixels are recharged so that their glow remains bright.
• If the refresh rate is higher, the image on the screen will look more solid and flicker less.

Resolution	The number of pixels in the horizontal and vertical direction. The more the number of pixels, the sharper is the image. The common resolution of the computer screen is 800x600 and 1024x768 Resolution in monitors is measured in pixels. The resolution of scanners can vary by 1000's DPI's (dots per inch). Resolution refers to the visuals of an image (for example, clarity and sharpness).
Pixel rate	It is sometimes called line pitch, stripe pitch, phosphor pitch, or pixel pitch. It is a specification for a computer display, computer printer, image scanner, or another pixel-based device that describes the distance, for example, between dots (sub-pixels) of the same color on the inside of a display screen. In the case of a color display, the dot pitch is a measure of the size of a triad plus the distance between the triads.
Bit depth	It is the number of bits used to represent the color of a single-pixel in a bitmapped image or video frame buffer. This concept is also known as bits per pixel (BPP), particularly when specified along with the number of bits used. Higher color depth gives a broader range of distinct colors. 1 byte can produce 256 colors. Usually, 2 or 3 bytes are used in images stored as photographs.