Question

Monitors with different resolutions can be attached to a computer. The computer can also render a video at various resolutions. Assuming that the videos are played at 1:1 resolution, which of the following options is/are TRUE?

• A. Given a video, a monitor with a higher resolution will display it in a smaller size than a monitor with lower resolution.
• B. Given a video, a monitor with a higher resolution will display it in a bigger size than a monitor with lower resolution.
• C. Given a monitor, a video with higher resolution will be visible in a smaller size than a video with a lower resolution.
• D. Given a monitor, a video with higher resolution will be visible in a bigger size than a video with a lower resolution.

Hint:

Think of pixels as physical tiles. A high-res monitor has tiny tiles, a low-res monitor has bigger tiles. To display a 10x10 pixel image (the video), it will look smaller if you build it with tiny tiles and bigger if you build it with big tiles. Conversely, on one monitor (all tiles are the same size), a 20x20 pixel video will naturally take up more space than a 10x10 pixel video.

Answer 1

The Correct Option is A, D

Step 1: Understanding the Concept:
This question deals with the relationship between video resolution, monitor resolution, and the physical display size. The key elements are: - Resolution: The number of pixels in an image or on a screen (e.g., 1920x1080). - 1:1 Resolution (or 1:1 Pixel Mapping): Each pixel of the video is displayed using exactly one pixel on the monitor. - Pixel Density (PPI/DPI): The number of pixels per inch on a screen. A higher resolution monitor of the same physical size has a higher pixel density, meaning each individual pixel is physically smaller.
Step 2: Detailed Explanation:
Let's analyze the two scenarios presented. Scenario 1: Given a video, comparing different monitors (Options A and B). - We have one video with a fixed resolution, for example, 1280x720 pixels. - We have two monitors of the same physical size (e.g., 24 inches), but with different resolutions. - Monitor 1 (Lower Res): 1920x1080. - Monitor 2 (Higher Res): 3840x2160 (4K). - Monitor 2 has more pixels packed into the same area, so its pixels are physically smaller. - When we play the 1280x720 video at 1:1 mapping, it will occupy a grid of 1280x720 pixels on both screens. - Since the pixels on the higher resolution monitor (Monitor 2) are smaller, the total physical area covered by the 1280x720 grid will also be smaller. - Therefore, a higher resolution monitor displays the video in a smaller physical size.
- Statement (A) is TRUE.
- Statement (B) is FALSE.
Scenario 2: Given a monitor, comparing different videos (Options C and D). - We have one monitor with a fixed resolution and fixed pixel size, for example, a 1920x1080 monitor. - We have two videos with different resolutions. - Video 1 (Lower Res): 1280x720 pixels. - Video 2 (Higher Res): 1920x1080 pixels. - We play both videos at 1:1 mapping on the same monitor. - Video 1 will occupy a grid of 1280x720 of the monitor's pixels. - Video 2 will occupy a grid of 1920x1080 of the monitor's pixels. - Since Video 2 uses more pixels, and each pixel has a fixed physical size, the total physical area it covers on the screen will be bigger. - Therefore, on a given monitor, a higher resolution video is visible in a bigger size.
- Statement (C) is FALSE.
- Statement (D) is TRUE.
Step 3: Final Answer:
Based on the analysis, statements (A) and (D) are true.