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• What quantities should you graph on the vertical and horizontal axes of your graph? • How will the graph determine Planck's constant and the work function? Calculate a percent error between your experimental value and the known value. How does your measured constant compare to the known value? What accounts for the differences? (h=6.63 x 10^-34 J.s)

• What quantities should you graph on the vertical and horizontal axes of your graph? • How will the graph determine Planck's constant and the work function? Calculate a percent error between your experimental value and the known value. How does your measured constant compare to the known value? What accounts for the differences? (h=6.63 x 10^-34 J.s)

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What quantities should you graph on the vertical and horizontal axes of your graph? • How will the graph determine Planck's constant and the work function? 5. Calculate a percent error between your experimental value and the known value. How does your measured value of Planck's constant compare to the known value? What accounts for the differences? (h= 6.63 x 10^-34 J.s)
Transcribed Image Text:What quantities should you graph on the vertical and horizontal axes of your graph? • How will the graph determine Planck's constant and the work function? 5. Calculate a percent error between your experimental value and the known value. How does your measured value of Planck's constant compare to the known value? What accounts for the differences? (h= 6.63 x 10^-34 J.s)
3. Use this table and graph to collect and analyze data. Hint: KE=eV in J 1 2 3 4 5 When e = electron charge = 1.6x10^-19C V- is the Stoping Potencial, f=c/wave length, c- is the speed of light on the empty space, c=3*10^8m/s * KE max (J) *** *** wavelength nm 4.05 4.73 5.32 5.89 6.35 2.5x10-19 2x10-19 1.5x10-19 1x10-19 variable 50M stopping potential ... V 1.8 1.2 0.90 0.98 0.48 ✔Display Curve Fit Uncertainties KE max Curve: y = Ax+B A: 6.92 x 10-27 +1.25 x 10-27 B: -2.33 x 10-197.39 × 10-20 J RMSE 2.66 x 10-20 J T: 0.955 variable Frequency 55M HZ 7.41e+7 6.34e+7 5.64e+7 5.09e+7 4.72e+7 X KE max vs Frequency V 60M Frequency (HZ) KE max 2.88e-19 1.92e-19 1.44e-19 1.57e-19 7.68e-20 65M y *** 70M ● *
Transcribed Image Text:3. Use this table and graph to collect and analyze data. Hint: KE=eV in J 1 2 3 4 5 When e = electron charge = 1.6x10^-19C V- is the Stoping Potencial, f=c/wave length, c- is the speed of light on the empty space, c=3*10^8m/s * KE max (J) *** *** wavelength nm 4.05 4.73 5.32 5.89 6.35 2.5x10-19 2x10-19 1.5x10-19 1x10-19 variable 50M stopping potential ... V 1.8 1.2 0.90 0.98 0.48 ✔Display Curve Fit Uncertainties KE max Curve: y = Ax+B A: 6.92 x 10-27 +1.25 x 10-27 B: -2.33 x 10-197.39 × 10-20 J RMSE 2.66 x 10-20 J T: 0.955 variable Frequency 55M HZ 7.41e+7 6.34e+7 5.64e+7 5.09e+7 4.72e+7 X KE max vs Frequency V 60M Frequency (HZ) KE max 2.88e-19 1.92e-19 1.44e-19 1.57e-19 7.68e-20 65M y *** 70M ● *
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