Dual Nature of Radiation and Matter - Result Question 47
49. A photo-cell employs photoelectric effect to convert
[2006]
(a) change in the intensity of illumination into a change in photoelectric current
(b) change in the intensity of illumination into a change in the work function of the photocathode
(c) change in the frequency of light into a change in the electric current
(d) change in the frequency of light into a change in electric voltage
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Answer:
Correct Answer: 49. (a)
Solution:
- (a) A photo-cell employs photoelectric effect to convert light energy into photoelectric current.