A laser mouse uses: MCQ with Answer and Explanation

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A laser mouse uses:

A. Ball

B. LED only

C. Laser for better surface compatibility

D. Mechanical

Answer: Option C

Solution (By JKSSB Mock Tests)

Precision tracking.

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Question #1

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OLED technology in monitors provides:

A. Lowest power in all cases

B. Slowest response

C. Perfect blacks and high contrast

D. Cheapest price

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Correct Answer: Option C

Explanation:
Self-emissive pixels.

This question belongs to: Computer Computer Hardware

Question #2

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Which is a disadvantage of laser printers for home use?

A. High noise

B. Frequent jams

C. Slow speed

D. Higher initial cost and less suitable for photos

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Correct Answer: Option D

Explanation:
Inkjet better for occasional color.

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Question #3

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The main purpose of a wrist rest on keyboards is:

A. Wireless charging

B. Increase speed

C. Ergonomics to prevent strain

D. RGB effect

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Correct Answer: Option C

Explanation:
Comfort during long typing.

This question belongs to: Computer Computer Hardware

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