Advanced PlacementHigh School / Physics

Planck's Constant

Students use a voltage sensor and an AC/DC electronics laboratory to measure the turn-on voltage of various colors of LEDs and then plot the turn-on voltage versus LED frequency to determine the value of Planck’s constant.

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Student Files

16_AP2_Plancks_Constant_GI.docx 106.61 KB
16_AP2_Plancks_Constant_SD.docx 105.79 KB
16_AP2_Plancks_Constant_S.docx 367.87 KB

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Standards Correlations

IB Topics AP Topics
12.1 6.F.3.1; 6.F.4.1

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Wireless Voltage Sensor

Wireless Voltage Sensor

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AC/DC Electronics Laboratory

AC/DC Electronics Laboratory

Facilitates electricity experiments for AC and DC. Can be used as a stand-alone with a multimeter or with PASCO sensors and software.

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Source: Lab #16

Advanced Physics 2 Lab Manual

Planck's Constant