Which technology uses radio waves to identify objects? MCQ with Answer and Explanation

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Which technology uses radio waves to identify objects?

A. Bluetooth

B. LiDAR

C. GPS

D. RFID

Answer: Option D

Solution (By JKSSB Mock Tests)

RFID stands for Radio-Frequency Identification.

This question belongs to: Static General Knowledge Science and Technology

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Question #1

What is the expansion of RAM in computer hardware?

A. Remote Access Memory

B. Readily Available Memory

C. Real-time Access Module

D. Random Access Memory

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Correct Answer: Option D

Explanation:
RAM is volatile memory used for temporary data storage.

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Question #2

India's first earth observation satellite was:

A. Bhaskara

B. IRS-1A

C. Cartosat-1

D. RISAT-1

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Correct Answer: Option B

Explanation:
IRS-1A was launched in 1988.

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Question #3

Chandrayaan-1 discovered evidence of what on the Moon?

A. Gold deposits

B. Active volcanoes

C. Water molecules

D. Alien life

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Correct Answer: Option C

Explanation:
It confirmed the presence of water/hydroxyl molecules on the lunar surface.

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