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Question
Which of the following devices is sometimes called an electric eye ?
Which of the following devices is sometimes called an electric eye ?
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Solution
The correct option is C Photocell
An electric eye also called pragic eye or 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.
An electric eye also called pragic eye or 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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