Question: In an experiment on the photoelectric effect, the frequency of light being used was measured as well as the stopping potential (the voltage just sufficient

In an experiment on the photoelectric effect, the frequency of light being used was measured as well as the stopping potential (the voltage just sufficient to stop the photoelectric effect) with the results given below. Use a calculator to find the least-squares line for V as a function of f. The frequency for V = 0 is known as the threshold frequency. From the graph determine the threshold frequency.

f(PHz) 0.550 0.605 0.660 0.735 0.805 0.880 0.350 0.600 0.850 1.10 1.45

f(PHz) 0.550 0.605 0.660 0.735 0.805 0.880 0.350 0.600 0.850 1.10 1.45 1.80 V (V)

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