In an Electron Two-Slit Experiment, the Slits Are 15 μM

Multiple Choice

In an electron two-slit experiment, the slits are 15 μm apart. If the first diffraction maximum lies at an angle of 5.0 × 10^-7 rad, what is the momentum of the incoming electrons?

A) 4.4 × 10^-23 kg∙m/s
B) 2.2 × 10^-23 kg∙m/s
C) 11 × 10^-23 kg∙m/s
D) 6.6 × 10^-23 kg∙m/s
E) 8.8 × 10^-23 kg∙m/s