A photocell employs photo electric effect to convert:
A. change in the intensity of illumination into a change in photoelectric current.
B. change in the frequency of light into a change in electric voltage.
C. change in the intensity of illumination into a change in the work function of the photo cathode.
D. change in the frequency of light into a change in the electric current.
Answer:A
A photocell employs photo electric effect to convert:
A. change in the intensity of illumination into a change in photoelectric current. B. change in the frequency of light into a change in electric voltage. C. change in the intensity of illumination into a change in the work function of the photo cathode. D. change in the frequency of light into a change in the electric current.