What is the use of 'Li-Fi' technology? MCQ with Answer and Explanation

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What is the use of 'Li-Fi' technology?

A. Data transmission using light

B. Sound waves

C. Radio waves

D. Magnetic fields

Answer: Option A

Solution (By JKSSB Mock Tests)

Li-Fi uses visible light for wireless communication.

This question belongs to: Static General Knowledge Science and Technology

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What is the main advantage of 5G over 4G?

A. Higher latency

B. Ultra-low latency and high speed

C. Higher cost only

D. Lower speed

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Correct Answer: Option B

Explanation:
5G offers significantly higher speeds and lower latency.

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Question #2

The first country to land on the Moon was:

A. USA

B. Soviet Union

C. China

D. India

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Correct Answer: Option B

Explanation:
Luna 2 of Soviet Union impacted the Moon in 1959.

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Question #3

India's first communication satellite was:

A. EDUSAT

B. INSAT-1A

C. APPLE

D. Aryabhata

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Correct Answer: Option C

Explanation:
APPLE was India's first experimental communication satellite.

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