CUET · PHYSICS · PYQ PAPER 2023
The number of photoelectrons emitted from a metal surface for incident light of frequency \(\nu\) (higher than the threshold frequency \(\nu_0\)) is directly proportional to :
- A Threshold frequency
- B intensity of light
- C frequency of light
- D \(\left(\nu-\nu_0\right)\)
Answer & Solution
Correct Answer
(B) intensity of light
Step-by-step Solution
Detailed explanation
The number of photoelectrons emitted (photoelectric current) depends on the number of incident photons. Since the intensity of light is defined as the number of photons striking a unit area per unit time, increasing the intensity increases the rate of electron emission, provided…
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