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2. structure of atom — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry2. structure of atom1 Mark
MCQ
In photoelectric effect, the photocurrent
  • A
    Increases with increasing frequency of incident photon.
  • B
    Decreases with increasing frequency of incident photon
  • ✓
    Does not depend on the frequency of photon
  • D
    Depends both on intensity and frequency of the incident photon
✓

Answer

Correct option: C.
Does not depend on the frequency of photon
c
When intensity of incident photon increases number of electrons emitted from the surface increases due to which current increases. Frequency of incident photon only limits the maximum kinetic energy of the photoelectron emitted and so the current is independent of frequency of photon.

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