What is the benefit of anti-reflective coatings? MCQ with Answer and Explanation

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What is the benefit of anti-reflective coatings?

A. Changes colors

B. Lowers resolution

C. Increases glare

D. Reduces glare for better visibility

Answer: Option D

Solution (By JKSSB Mock Tests)

In bright environments.

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Question #1

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RFID tags are read using:

A. Thermal sensors

B. Magnetic readers

C. Radio frequency input devices

D. Optical scanners

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Correct Answer: Option C

Explanation:
Contactless identification.

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Question #2

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Which memory type is non-volatile and used for firmware?

A. DRAM

B. Flash memory

C. EDO RAM

D. SRAM

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Correct Answer: Option B

Explanation:
Retains data without power.

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Question #3

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Which input device is used in retail for price scanning?

A. Graphics tablet

B. Microphone

C. Joystick

D. POS barcode scanner

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Correct Answer: Option D

Explanation:
Speeds up checkout process.

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