8) The photoelectric work function of a metal is the minimum energy needed to eject an...

8) The photoelectric work function of a metal is the minimum energy needed to eject an electron by irradiating the metal with light. For calcium, this work function equals 4.34 x 10-19 J. What is the minimum frequency of light required to observe the photoelectric effect in calcium?

9) Light of wavelength 345 nm shines on a piece of calcium metal. What is the speed of the ejected electron? (Light energy greater than that of the work function of calcium or any metal ends up as the kinetic energy of the electron ejected…)

please give me a full explaination and formula

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queen_honey_blossom answered 1 year ago

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