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The work function of a metal surface is 4.80 × 10-19 J. The maximum speed of...

The work function of a metal surface is 4.80 × 10-19 J. The maximum speed of the electrons emitted from the surface is vA = 7.2 × 105 m/s when the wavelength of the light is λA. However, a maximum speed of vB = 6.0 × 105 m/s is observed when the wavelength is λB. Find the wavelengths λA and λB.

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Answer #1

m = Mass of electron

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