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Question: Answered & Verified by Expert
According to Einstein's photoelectric equation to the graph between kinetic energy of photoelectrons ejected and the frequency of incident radiation is
PhysicsDual Nature of MatterKCETKCET 2021
Options:
  • A

  • B

  • C

  • D

Solution:
2151 Upvotes Verified Answer
The correct answer is:

The maximum kinetic energy of photoelectron ejected is given by $\mathrm{KE}=h \mathrm{v}-\phi_{0}=h \mathrm{v}-h \mathrm{v}_{0}=h\left(\mathrm{v}-\mathrm{v}_{0}\right)$
If the frequency of incident radiation is greater than threshold frequency $v_{0}$, then the ejection of photoelectrons starts. After that as frequency increases, kinetic energy also increases linearly. It is shown in option (d).

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