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How many photons are produced in a laser pulse of 0.807J at 559nm ? photons: Calculate the maximum wavelength, max, of electromagnetic radiation that could

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How many photons are produced in a laser pulse of 0.807J at 559nm ? photons: Calculate the maximum wavelength, max, of electromagnetic radiation that could eject electrons from the surface of calcium. which has a work function of 4.601019J. max= If the maximum speed of the emitted photoclectrons is 3.12106m/s, what wavelength of electromagnetic radiation struck the surface and caused the ejection of the photoclectrons

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