Could any help me get my head around this stuff!!
i understand double slit but not this one , the light gets wider as the slits close.......put what's that showing? Im trying to find a diagram or vid which is easy to understand but cant
and how closed can they get the slit before it stops getting wider? The closer it gets the wider it gets ? ....... Then how wide is it when its closed shut ?
please help me understand this on a dummies level ........ I will lower myself to this level it helps
thank u
Basically what uncertainty comes down to is the more you know about one half of a pair of certain physical properties, the less you know about the other half. It's most often shown using location and momentum because it's something we can easily relate to. Knowing where something is and what it's doing is pretty fundamental in our everyday lives.
So, with a wide slit, you can clearly see the momentum of the photons*. They project exactly as you'd expect, all moving in a straight path forming a perfect dot. The important part about momentum in this example relates more to velocity, specifically direction. Velocity is speed and direction, momentum describes mass along with velocity.
Anyways, by closing the slit, he forces a condition of knowing more precisely the location of the photons as they passes through the slit. Eventually you get to that balance point in the equation where closing the slit any further will make your now projected vertical bar start to go wonky. Think of this as the point, more or less, where you know both location and velocity of the photons as they pass through the slit with equal precision.
Continuing to close the slit throws the equation out of balance in favor of location. Uncertainty is forced to kick in and prevent the math from crashing, so to speak, by altering the velocity measurements at the slit. The result is an output (the bar projected on the screen) that shows an increasing degree of change in velocity as the photons begin to spread out further and further.
So, you start with knowing more about velocity - A round dot on the screen
1/2 way through, you know as much about one as the other, and you see a bar
at the end, you know more about location and less about velocity with a completely distorted projection.
Closing the slit ends the experiment.
How was that?
Note: I'm no authority on the subject. This is just my understanding of it.
*that's what she said.
