CUET · PHYSICS · PYQ PAPER 2025
The stopping potential of photo-electrons depends upon:
- A Frequency of incident light only
- B material of the cathode only
- C both the frequency of the incident light and the material of the cathode.
- D intensity of the incident light.
Answer & Solution
Correct Answer
(C) both the frequency of the incident light and the material of the cathode.
Step-by-step Solution
Detailed explanation
both the frequency of the incident light and the material of the cathode. This equation shows that the stopping potential (\(\mathbf{V}_{\mathbf{s}}\)) depends on the frequency of the incident light (\(\mathbf{f}\)) and the work function (\(\mathbf{\phi }\)) of the cathode…
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