(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Particles pass through a single slit of width 0.2 mm in a diffraction setup. The de Broglie wavelength of each particle is 633 nm. After the particles pass through the slit, they spread out over a range of angles. Use the Heisenberg uncertainty principle to determine the minimum range of angles.

2. Relevant equations

Heisenberg uncertainty principle

sin [tex]\theta[/tex]= [tex]\lambda[/tex]/W

3. The attempt at a solution

I'm not sure exactly what a minimum range of angles mean. Is it all the possible angles through which the electrons can follow?

I believe I'm stuck on how to use the uncertainty principle to find an angle. I know that the equation for diffraction through a single slit might be useful.

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# Question on Heisenberg uncertainty principle

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