A photocell is a device used to: | vedclass

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(B) photocell operates on the principle of the photoelectric effect. When light falls on the photosensitive surface of the cell,it emits electrons. Th

Vedclass · Accepted Answer

Measure light intensity

Vedclass · Answer

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

$A$ photocell is a device used to:

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