Experiments
Here are experiments our science specialists have selected to support this IB* topic.
Planck’s Constant
Experiment #22 from Advanced Physics with Vernier — Beyond Mechanics
In this experiment, you will
- Collect and analyze current vs. potential data to estimate the energy required to excite a number of LEDs.
- Use a spectrometer to determine the wavelength of the peak output of each LED.
- Determine a value for Planck’s constant from an analysis of the energy and frequency of the light emitted by a number of LEDs.
- Educational Standard
- International Baccalaureate (IB) 2025
- Subject
- Chemistry
- Organizing concepts
- Structure 1. Models of the particulate nature of matter
- Subtopics
- Structure 1.3—Electron configurations
- Level
- Additional higher level
* The IB Diploma Program is an official program of the International Baccalaureate Organization (IBO) which authorizes schools to offer it. The material available here has been developed independently of the IBO and is not endorsed by it.