What is blue light filter in monitors? MCQ with Answer and Explanation

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What is blue light filter in monitors?

A. For night mode only

B. Increases blue colors

C. Reduces eye strain from short wavelength light

D. Printer feature

Answer: Option C

Solution (By JKSSB Mock Tests)

Health feature.

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Question #1

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A vector monitor or plotter excels in:

A. Line drawings and CAD

B. Text documents

C. Photographs

D. Audio

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Correct Answer: Option A

Explanation:
Precision over raster.

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Question #2

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Which input device is used by architects for CAD?

A. Webcam

B. Barcode reader

C. Graphics tablet

D. Standard mouse

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Correct Answer: Option C

Explanation:
Graphics tablets offer precision for design.

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Question #3

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A barcode scanner uses:

A. Thermal sensors

B. Laser or camera to read codes

C. Ink detection

D. Magnetic fields

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Correct Answer: Option B

Explanation:
Optical recognition.

This question belongs to: Computer Computer Hardware

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