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:

  1. (a) A photo-cell employs photoelectric effect to convert light energy into photoelectric current.