# Modern Physics

## Homework Statement

A single electron with de Broglie wavelength $$\lambda$$ passes through a slit of width d = 2$$\lambda$$. The electron can then strike a flourescent screen. What will be observed on the screen?

a) A diffraction pattern
b) A single flash has if the electron had moved in a straight line through the slit.
c)A single flash that could occur anywhere on the screen.
d)A single flash that would most likely occur where a corresponding diffraction pattern would have the highest intensity.

NONE

## The Attempt at a Solution

Since there is only a single electron, I dont think we will get a diffraction pattern. So my answer is b.

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Redbelly98
Staff Emeritus
Homework Helper
Note that you have only (and correctly) ruled out choice (a).

You'll need to think some more about this. It might help to think what would happen if the experiment is repeated many many times.

Well what if the experiment is done only once.?

If its done many times, answer is probably "d".

Redbelly98
Staff Emeritus