Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2027 exam
Verified for the 2027 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
The de Broglie equation relating the wavelength of a particle to Planck's constant and the particle's momentum, where λ is wavelength, h is Planck's constant, and p is momentum.
AP course connection
Topic 15.1: 15.1 Quantum Theory and Wave-Particle Duality