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What kind of energy is involved in watching a video?
Watching a video involves mainly light energy in the form of electromagnetic waves emitted by the screen and sound energy from the speakers. Additionally, electrical energy powers the device displaying the video.
What is the display device takes the electrical signals from the video card and forms an image using points of colored light on the screen?
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Light travels faster than soundHowever when you switch a television set on the picture comes latter than soundwhat is the reason?
The delay in television picture is due to the time needed to process and decode the video signal before displaying it on the screen. The sound signal is usually simpler and quicker to process, hence it reaches the viewer sooner than the video signal.
What is the display device that takes the electrical signals from the video card and forms an image using points of colored light on the screen?
The display device is called a monitor or screen. It receives electrical signals from the video card and uses pixels to create an image composed of colored points of light on the screen, which together form the visual content that we see.
A machine that transmits an image onto a surface?
A projector is a machine that transmits an image onto a surface using light and lenses. The image or video is displayed onto the surface by shining light through a transparent lens system. Projectors are commonly used in classrooms, theaters, and conference rooms for presentations and entertainment purposes.
