# Electron Single Slit Diffraction

## Homework Statement

Electrons pass through a 10-6m wide slit with a speed of 1.5 x 106m/s. How wide is the electron diffraction pattern on a detector 1 m behind the slit.

## Homework Equations

$$\lambda$$=h/mv (matter waves)
asin$$\theta$$=m$$\lambda$$ (path length difference for constructive interference)
y=Ltan$$\theta$$ (location of bright fringes)

## The Attempt at a Solution

First I found the wavelength of the electrons using De Broglie's equation. This I'm pretty sure is correct. What I'm not sure about is how electrons diffract in a single slit. i don't know if the formulas for the single slit diffraction of light waves will work for electrons.

vela
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