CUET · PHYSICS · PYQ PAPER 2025
In an experiment on the photoelectric effect, the slope of the cut-off voltage versus frequency of the incident light gives
- A h
- B h/e
- C e/h
- D \( V_0 \)
Answer & Solution
Correct Answer
(B) h/e
Step-by-step Solution
Detailed explanation
\( eV_0 = hf - \phi \) \( V_0 = \left(\frac{h}{e}\right)f - \frac{\phi}{e} \) Slope \( = \frac{h}{e} \)
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