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NTA Abhyas JEE Main2020ChemistryStructure of AtomPractice

For the photoelectric effect, the maximum kinetic energy for (E K ) of the emitted photo electrons is plotted against the frequency ν of the incident photons as shown in figure. The slope of the curve give

Options

  1. Acharge of the electron
  2. Bwork function of the metal
  3. CPlank's constant
  4. Dratio of the Plank's constant to electronic charge

Correct answer

C. Plank's constant

Step-by-step solution

E K   =   h ν − E 0 where E 0 = work function y = m x + c Comparison shows that the Plank's constant will be the slope of the line.

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