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please answer question 1

1. When a clean surface of silver metal is iradiated with 200-mm photons, the velocity of the
ejected electrons is 742 × 105 m/s.
a) Calculate the work function of silver in electron volts (ev.
b) What is the maximum wavelength of light that will remove an electron from silver?
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Transcribed Image Text:1. When a clean surface of silver metal is iradiated with 200-mm photons, the velocity of the ejected electrons is 742 × 105 m/s. a) Calculate the work function of silver in electron volts (ev. b) What is the maximum wavelength of light that will remove an electron from silver?
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