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COMEDK202510 May 2025Evening ShiftPhysicsDual Nature of MatterActual

Which of the following statement is wrong regarding the photo electric effect.

Options

  1. AThe maximum kinetic energy of the electrons emitted depends on the intensity of the incident radiation
  2. BPhoto electric current is directly proportional to the intensity of the incident radiation
  3. CThe maximum kinetic energy of the electrons emitted depends on the frequency of the incident radiation
  4. DThe value of the stopping potential increases with the increase in frequency of the incident radiation.

Correct answer

A. The maximum kinetic energy of the electrons emitted depends on the intensity of the incident radiation

Step-by-step solution

According to Einstein's photoelectric equation, the maximum kinetic energy of emitted photoelectrons is given by K_ max = h - , where h is Planck's constant, is the frequency of incident radiation, and is the work function of the metal. From this equation, it is evident that K_ max depends only on the frequency of the incident radiation and the work function of the material. It does not depend on the intensity of the incident radiation. The photoelectric current is directly proportional to the intensity of the inci

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