Which type of communication transmits information using electromagnetic waves? MCQ with Answer and Explanation

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Which type of communication transmits information using electromagnetic waves?

A. Messenger Service

B. Electronic Communication

C. Postal Communication

D. Courier Service

Answer: Option B

Solution (By JKSSB Mock Tests)

Electronic communication such as radio, television, and mobile communication uses electromagnetic waves.

This question belongs to: Geography GK Transport and Communication

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Question #1

Which is the busiest airport in India?

A. Mumbai Airport

B. Goa Airport

C. Chennai Airport

D. Kolkata Airport

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Correct Answer: Option A

Explanation:
Mumbai's Chhatrapati Shivaji Maharaj International Airport is one of the busiest in India.

This question belongs to: Geography GK Transport and Communication

Question #2

Which railway gauge has been phased out in most parts of India?

A. Standard gauge

B. Metre and narrow gauge

C. High-speed gauge

D. Broad gauge

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Correct Answer: Option B

Explanation:
Metre and narrow gauges have largely been replaced by broad gauge under Project Unigauge.

This question belongs to: Geography GK Transport and Communication

Question #3

Which communication service is used to uniquely identify devices on the internet?

A. PIN Code

B. QR Code

C. IP Address

D. Barcode

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Correct Answer: Option C

Explanation:
An IP address uniquely identifies a device connected to a network.

This question belongs to: Geography GK Transport and Communication

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