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Which of the following devices is sometimes called an electric eye?

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LED

Photocell

Integrated chip (IC)

Solar cell

answer is B.

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Detailed Solution

An electric eye also called photocell, is a device that converts light into electric energy by producing a voltage or uses light to regulate the flow of current.

An electric eye, which automatically opens door as you approach it, is an example of a photo electric cell at work.

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