find D, L, y, . Electrons are incident on a double slit and pass through to ascr

Question

find D, L, y, . Electrons are incident on a double slit and pass through to ascreen as shown. Each of the five animations gives a snapshotof the data collected at a later time period. If the slit is0.08-microns wide and the distance to the screen is 1.2 m, what isthe de Broglie wavelength of the electron (signal is incounts of 100 and the position on the screen is given inmm).
Here is an Image of time 5 http://homepages.ius.edu/kforinas/modern/contents/need_quantum/waves_particles/default.html Hint: use equation: I =I0sin2(Dy/L)/(Dy/L)2 and solve for value of y when I first goesto zero. Remeber that y is the distance from center on the screen,which the animation refers to as x.

Explanation / Answer

I get 83.6mm for Y and a very large for the deBroglie wavelength . I don't think this is right...can anyone helpme out??

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