A photo cell is a device used to: | vedclass

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Question

(B) photo cell (or photodiode) operates on the principle of the photoelectric effect. When light falls on the photosensitive surface,it emits electron

Vedclass · Accepted Answer

Measure light intensity

Vedclass · Answer

(B) photo cell (or photodiode) operates on the principle of the photoelectric effect. When light falls on the photosensitive surface,it emits electrons. The number of photoelectrons emitted is directly proportional to the intensity of the incident light. By measuring the photocurrent,we can determine the intensity of the light. Therefore,a photo cell is used to measure light intensity.

$A$ photo cell is a device used to:

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