Q. A photo-cell employs photoelectric effect to convert
A) Change in the intensity of illumination into a change in the work function of the photo cathode
B) Change in the frequency of light into a change in the electric current
C) Change in the frequency of light into a change in electric voltage
D) Change in the intensity of illumination into a change in photoelectric current
Explanation
(d) The photoelectric current is directly proportional to the intensity of illumination. Therefore a change in the intensity of the incident radiation will change the photocurrent also
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.