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Question: Answered & Verified by Expert

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

PhysicsDual Nature of MatterJEE MainJEE Main 2024 (30 Jan Shift 2)
Options:
  • A Ratio of Planck’s constant to electric charge
  • B Work function of the metal
  • C Charge of electron
  • D Planck’s constant
Solution:
1617 Upvotes Verified Answer
The correct answer is: Planck’s constant
Comparing Einstein's equation Kmax=hv-hv0, with y=mx+c, we get slope, m=h, which is Planck’s constant.

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