Physics, 29.11.2019 04:31 tiaragirl923

When light of wavelength 345 nm falls on a potassium surface, electrons are emitted that have a maximum kinetic energy of 1.67 ev. what is the work function of potassium? the speed of light is 3 × 108 m/s and planck’s constant is 6.63 × 10−34 j · s.

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When light of wavelength 345 nm falls on a potassium surface, electrons are emitted that have a maxi...