According to photoelectric effect, in Column I, some physical quantities change while in Column II effects of these changes are given. Match the entries of Column I with the entries of Column II.
Column-1 | Column-1I | ||
(A) | Intensity of incident light changes | (I) | Stopping potential changes |
(B) | Frequency of incident light changes | (II) | of emitted photo-electrons changes |
(C) | Target material changes | (III) | Saturation current changes |
(D) | Potential difference between the emitter and collector changes. | (IV) | Time delay in emission of photoelectrons changes |
Text Solution
Verified by ExpertsC
-(III); -(I, II); -(I, II), -(IV)
If intensity changes, then number of photons/time incident on the metal surf ace change and hence number of photoelectrons liberated change, so saturation photocurrent changes. Stopping potential and 
will remain the same.
From 
and 
If 
changes, then 
and 
change.
From 
and 
.
If target material changes, then 
changes, then 
and 
change.
If we change the potential difference between emitter and collector, then time taken for electrons to eject changes.
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