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For the photoelectric effect, the maximum kinetic energy E k of the photoelectrons is plotted against the frequency ( v ) of the incident photons as shown in figure. The slope of the graph gives

Options

  1. ARatio of Planck’s constant to electric charge
  2. BWork function of the metal
  3. CCharge of electron
  4. DPlanck’s constant

Correct answer

D. Planck’s constant

Step-by-step solution

Comparing Einstein's equation K max = h v - h v 0 , with y = m x + c , we get slope, m = h , which is Planck’s constant.

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