Discussion
A photoelectric cell is a device which
Answer: A
A photoelectric cell converts light energy into electric energy.
A photoelectric cell (photocell) works on the photoelectric effect: light falling on a photosensitive surface releases electrons, producing an electric current that depends on the intensity of light. Photocells are used in automatic doors, burglar alarms, light meters and street lights that switch on at dusk.
Converting electric energy into light is what a bulb or LED does, and a photocell does not store energy; a battery stores electrical energy.
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