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Cell phones sent information in form of ________

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Cell phones sent information in form of ________

(a) microwaves

(b) electrical signals

(c) infrared Waves

(d) radio waves

The question was asked by my school principal while I was bunking the class.

The question is from Source of Information in section Elements of Communication System of Analog Communications

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Best answer
The correct choice is (d) radio waves

To elaborate: Cell phones transmit information in form of radio waves to communicate with each other. Radio waves are transmitted in all directions by the cell phone, and they travel at the speed of light in air or vacuum.

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