JC-21) Planck's Constant from Data When sodium metal is illuminated with light of wavelength is changed to 4.20 x 102 nm, the stopping potential is 0.65 V. When the wavelength is changed to 3.10 x 102 nm, the stopping potential is 1.69 V. Using ONLY THESE DATA and the values of the speed of light and the electric charge, find the work function of sodium and a value of Planck's constant.
JC-21) Planck's Constant from Data When sodium metal is illuminated with light of wavelength is changed to 4.20 x 102 nm, the stopping potential is 0.65 V. When the wavelength is changed to 3.10 x 102 nm, the stopping potential is 1.69 V. Using ONLY THESE DATA and the values of the speed of light and the electric charge, find the work function of sodium and a value of Planck's constant.
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Explain the steps to find the answer, which equation you are using and why you are using it. Also a small reflection about the problem. Thanks.
Transcribed Image Text:JC-21) Planck's Constant from Data
When sodium metal is illuminated with light of wavelength is changed to
4.20 x 102 nm, the stopping potential is 0.65 V. When the wavelength is changed to
3.10 x 102 nm, the stopping potential is 1.69 V. Using ONLY THESE DATA and the values of
the speed of light and the electric charge, find the work function of sodium and a value of
Planck's constant.
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