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23 Nov 2019
The goal of this experiment is to test the hypothesis that the fluxof light decreases as the square of the distance from the source.In this case, the absolute value of the voltage measured by thephotometer is irrelevant; only the relative value conveys usefulinformation. Suppose that a students obtain a signal value of 179mV at a distance of 3.8 cm and a value of 86 mV at a distance of5.9 cm. Normalize the students' data to the value obtained at 3.8cm. (Divide the signal value by 179.) Then calculate thetheoretically expected (normalized) value at 5.9 cm.
_____________ Normalized experimental value at 5.9 cm
______________ Theoretically expected normalized value at 5.9 cm
The goal of this experiment is to test the hypothesis that the fluxof light decreases as the square of the distance from the source.In this case, the absolute value of the voltage measured by thephotometer is irrelevant; only the relative value conveys usefulinformation. Suppose that a students obtain a signal value of 179mV at a distance of 3.8 cm and a value of 86 mV at a distance of5.9 cm. Normalize the students' data to the value obtained at 3.8cm. (Divide the signal value by 179.) Then calculate thetheoretically expected (normalized) value at 5.9 cm.
_____________ Normalized experimental value at 5.9 cm
______________ Theoretically expected normalized value at 5.9 cm
