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JEE Main20238 Apr 2023Evening ShiftPhysicsDual Nature of MatterActual

In photoelectric effect A. The photocurrent is proportional to the intensity of the incident radiation. B. Maximum kinetic energy with which photoelectrons are emitted depends on the intensity of incident light. C. Max K.E. with which photoelectrons are emitted depends on the frequency of incident light. D. The emission of photoelectrons require a minimum threshold intensity of incident radiation. E. Max K.E. of the

Options

  1. AA and B only
  2. BA and E only
  3. CA and C only
  4. DB and C only

Correct answer

C. A and C only

Step-by-step solution

With proper energetic radiation, the photoelectric current increases with an increase in accelerating potential until it reaches a point where it reaches its maximum and does not increase with an additional increase in accelerating potential. For a given potential difference, the photocurrent is directly proportional to the intensity of the incident radiation. The maximum kinetic energy of the emitted photoelectrons can be written as K max = h ν - φ From above equation, it can be seen that the maximum kin

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