Question

Refer to the exhibit. What is true of this mobile device screen?

Answer 1

The mobile device screen in the exhibit appears to be in landscape orientation.

Step-by-step explanation:

The orientation of a mobile device screen is determined by its aspect ratio, the ratio of the width to the height. In the exhibit, if the width is denoted as W and the height as H, the aspect ratio (AR) can be calculated as AR = W / H. In landscape orientation, the width is greater than the height, resulting in an aspect ratio greater than 1. By visual inspection of the exhibit, it is evident that the screen is wider than it is tall, indicating a landscape orientation.

Furthermore, the content on the screen provides additional clues. Landscape orientation is often preferred for multimedia content, videos, and certain applications that benefit from a wider display. In the exhibit, if there are visual elements like images, videos, or app icons arranged horizontally, it supports the conclusion that the screen is in landscape mode. This observation aligns with the common user interface design principles that cater to the optimal presentation of content in landscape orientation for a more immersive experience.

In summary, considering both the aspect ratio calculation and the visual elements on the screen, it is reasonable to conclude that the mobile device screen in the exhibit is in landscape orientation. The wider display is characteristic of landscape mode, providing a broader canvas for content presentation and enhancing the user's interaction with multimedia and applications.

Answer 2

The image referenced shows a closeup of a flat-panel display's pixels, which consist of red, green, and blue subpixels. These types of screens are used in various devices, and the image can be controlled by adjusting the voltage applied to liquid crystals within the pixels to change contrast.

Step-by-step explanation:

An image of a mobile device screen and its characteristics. Specifically, the image referenced (Option A) is likely to show a closeup of a flat-panel display screen illustrating the composite pixels that make up the image seen on devices such as laptop computers, tablets, and flat screen televisions. Each pixel is comprised of three subpixels in the colors red, green, and blue which can be manipulated to produce the full spectrum of colors on the screen.

These electronic displays have a history of being imported, with the U.S. historically relying on foreign production, primarily from Japan, in the early 1990s. Meanwhile, Option B, which refers to a computer hard drive, is unrelated to the student's apparent focus on the mobile device screen.

Additionally, it's worth noting that flat-panel displays like those in LCD televisions operate by using a backlight that shines through millions of pixels, each containing liquid crystals with filters of red, green, or blue. The use of voltage controls the orientation of these liquid crystals, thus controlling the light passing through and creating the image contrast seen on the screen.