The position of both an electron and helium atom is known within 1.0 nm . The momentum of the electr

Question

The position of both an electron and helium atom is known within 1.0 nm . The momentum of the electron is known within $5.0 	imes 10^{-26} \mathrm{~kg} \mathrm{~ms}^{-1}$. The minimum uncertainty in the measurement of the momentum of the helium atom is

Professor PC Thomas Classes · Answer

$\Delta x \Delta p \ge \frac{h}{4\pi}$. If $\Delta x$ is same for both, the minimum uncertainty $\Delta p$ must be the same: $5.0 	imes 10^{-26}$.