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12.1 The interaction of matter with radiation

Experiments

Here are experiments our science specialists have selected to support the 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)
Subject
Physics
Section
Additional Higher Level (AHL)
Topic
12. Quantum and nuclear physics

* 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.

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