<p align="right">Last Update: <font color="#4f81bd">November 25, 2024</font></p> ## BIG IDEAS - Formulated by Werner Heisenberg. - This principle states that it is impossible to simultaneously know both the exact position and exact momentum of a particle. - This inherent uncertainty is a fundamental feature of quantum systems. --- ### Symbols $\Delta x \ \Delta p \ge \frac{\hbar}{2} \tag{1}$ Where $\Delta x$ is the position, $\Delta p$ is the momentum, and $\hbar$ (h-bar) is the reduced Planck constant >[!important] >One cannot assign exact simultaneous values to the position and momentum of a physical system. ### Related Topics --- [[Home|Home]] | [[Quantum mechanics]] | [[Notes Vault/Physics Notes Vault/Quantity of Motion/Quantum Mechanics/Blackbody Radiation|Blackbody Radiation]] | [[Photoelectric Effect]] | [[Atomic Theory]]