If the intensity of radiation incident on a photocell be increased four times. the number of photoelectrons and energy of photoelectron emitted respectively becomes
four times, doubled
doubled, remains unchanged
remains unchanged, doubled
four times, remains unchanged.
As we learned
Photoelectric current -
The current constituted by photo electrons is known as photo electric current
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Since the number of photoelectrons emitted is directly proportional to the intensity of incident radiation, the number of photoelectrons emitted becomes four times. The energy of photoelectrons does not change with the intensity of light.