In this activity students combine energy conservation with the relationship between the de Broglie wavelength and momentum to find the wavelength of atoms that have been dropped a given distance.
This activity follows Interference and quantum weirdness and requires at minimum the end of the lecture which discusses this experiment.
In Interference and quantum weirdness you learned about an experiment in which rubidium atoms are dropped from a trap into an optical two-slit experiment. During this experiment the atoms fall a total of 1.5 meters. What is the de Broglie wavelength of an atom after falling from rest 1.5 m? \begin{align} \lambda &= \frac{2\pi\hbar}{p} \end{align}
assignment Homework
assignment Homework
assignment Homework
assignment Homework
assignment Homework
assignment Homework
face Lecture
5 min.
computer Computer Simulation
30 min.
group Small Group Activity
30 min.
assignment Homework
Use the cross product to find the components of the unit vector \(\mathbf{\boldsymbol{\hat n}}\) perpendicular to the plane shown in the figure below, i.e. the plane joining the points \(\{(1,0,0),(0,1,0),(0,0,1)\}\).