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The maximum wavelength for which an electromagnetic wave can eject electrons from a platinum surface is...

The maximum wavelength for which an electromagnetic wave can eject electrons from a platinum surface is 196 nm. When radiation with a wavelength of 141 nm shines on the surface, what is the maximum speed of the ejected electrons? Please include a diagram if you can!

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Answer #1

Answer is 29471.987 m/s

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