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Textbook Expert
Textbook ExpertVerified Tutor
4 Nov 2021

Given information

The threshold frequency of electron is

The wavelength of light is .

  

Step-by-step explanation

Step 1.

 using the relation

  

Here,

  •  is the energy of the electron.
  •    is the threshold frequency of electron
  •    is the Planck’s constant

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