https://www.wolframalpha.com/input/?i=linear+fit+%7B1.3,+2.2%7D,%7B2.1,+5.8 %7D,
ID: 3307823 • Letter: H
Question
https://www.wolframalpha.com/input/?i=linear+fit+%7B1.3,+2.2%7D,%7B2.1,+5.8 %7D,%7B3.7,+10.2%7D,%7B4.2,+11.8%7DPlease include formulas/steps and wolfram alpha or excel plot.
Thank you. 4. The following data were obtained on electron kinetic energies ejected in studying the photoelectric effect from a potassium metal surface. Use Excel or Wolframalpha to evaluate the potassium work function and the Planck constant. Remember to first convert wavelength to energy 3470IO3m Electron kinetic 4.49 3.09 energies (x 1019 J) Incident (nm) | 250 | 300 | 350 | 400 | 450 | 500 WolframAlpha Example: linear fit 1.3, 2.2,2.1, 5.83,13.7, 10.2),(4.2, 11.8) https://www.wolframalpha.com input/?i linear+fit+%.7BL3.+2.2%7D%7B2 1.+58 Which aspect of photoelectric effect demonstrates that light can have particle-like behavior?
Explanation / Answer
The intercept of the straight line on energy axis will give the work-function of the metal. The work-function is defined as the amount of energy required to eject the electron.
This work function explains the quantum nature of light that will be used to explain photo-electric effect.
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