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MHT CET Medical202624 April 2026Evening ShiftPhysicsDual Nature of MatterActual

Statement I - When the wavelength of incident radiation in a photoelectric experiment is decreased, then the stopping potential will decrease. Statement II - In photoelectric effect, if the intensity of light is doubled, then the maximum kinetic energy of photoelectrons will become double.

Options

  1. AStatement I is true and statement II is false.
  2. BStatement I is false and statement II is true.
  3. CBoth the statements are correct.
  4. DBoth the statements are incorrect.

Correct answer

D. Both the statements are incorrect.

Step-by-step solution

According to Einstein's photoelectric equation, the maximum kinetic energy of photoelectrons is given by K_ max = hc - , where is the wavelength of incident radiation and is the work function. The stopping potential V₀ is related to maximum kinetic energy as eV₀ = K_ max . If the wavelength is decreased, the term hc increases, which increases K_ max . Consequently, the stopping potential V₀ will increase. Thus, Statement I is incorrect. The maximum kinetic energy of photoelectrons depends only on the frequency (or

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