Day 132: Photoelectric Effect Summative Lab

Today, AP Physics 2 students returned from break and completed the first half of the photoelectric effect summative lab. Throughout this lab, they use PASCO’s excellent (and discontinued) h/e apparatus. This first half of the lab has students measure the time to recharge the capacitor for different intensities of light and measure the stopping potential for different frequencies of light. Tonight, they will graph stopping potential versus frequency, interpret the significance of the slope and y-intercept, and solve for h and the work function based on their graph.


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