Dual Nature of Radiation and Matter - Result Question 40
42. The number of photo electrons emitted for light of a frequency $v$ (higher than the threshold frequency $v_0$ ) is proportional to:
[2009]
(a) Threshold frequency $(v_0)$
(b) Intensity of light
(c) Frequency of light $(v)$
(d) $v-v_0$
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Answer:
Correct Answer: 42. (b)
Solution:
- (b) The number of photoelectrons emitted is proportional to the intensity of incident light. Saturation current $\propto$ intensity.
