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

Find the de Broglie wavelength for an electron with v=0.001c. Find the angular width of the central bright fringe in a double slit experiment, with the separation of the two slits d=50nm.

2. Relevant equations

wavelength = h/mv

d sin(theta)=n*wavelength

3. The attempt at a solution

For the wavelength, I got 2.42x10^-9m. I think this sounds correct.

Is my second equation for diffraction applicable here? I know that it is double slits so there will be interference and not just diffraction. If this equation is applicable, the my answer is 2*theta = 5.55 degrees.

Or is there a specific equation for double slit that I should use?

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# Homework Help: Double slits

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