In photoelectric effect, keeping the frequency of incident radiation and accelerating potential fixed, if the intensity of incident light is increased,
Show Hint
- the photoelectric current increases.
- the kinetic energy of emitted photoelectrons increases.
- photoelectric current decreases.
- kinetic energy of emitted photoelectrons decreases.
The Correct Option is A
Solution and Explanation
Einstein's equation gives \(eV_0 = hv - h v_0\), so \(V_0 = \frac hev - \frac{hv_0}{e}\).
Step 2: Effect:
The stopping potential increases linearly with the frequency (slope \(\frac he\)), and does not depend on intensity. So when v increases with all else constant, \(V_0\) increases.
Final Answer:
The stopping potential increases, option (C). \[ \boxed{\text{increases}} \]
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