Ultraviolet radiation of wavelength 121 nm is used to, Physics

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Ultraviolet radiation of wavelength 121 nm is used to

Question: Ultraviolet radiation of wavelength 121 nm is used to irradiate a sample of potassium metal. The work function of potassium is 2.25 eV.

Part A: Calculate the speed of the electrons emitted through the photoelectric effect ( Ã= 106 m s^-1).

You must show your work in an efficient manner so I can understand it in clearly.

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Physics: Ultraviolet radiation of wavelength 121 nm is used to

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