User talk:Honeychurch

Let's say that someone does the double slit experiment as follows:

The particle emitter being used is a photon gun. Each time a button is pressed, one and only one green photon is fired. The gun is aimed in such a way that the green photon goes through the middle of the left hand slit and strikes the detector screen at exactly the same spot every time. Since the gun is aimed through the middle of the left hand slit, what difference does it make if the right hand slit is open or closed? The width of the slit is much greater than the wavelength of the photon. All that happens is that you end up with many hits at a single point on the detector screen.

Please let me know what is wrong with this way of thinking about the double slit experiment.

By the way, what is the usual width of the slits in this experiment? Any slit visible to the naked eye would have to have a width many times the wavelength of any visible light photon.