Heisenberg's Indeterminancy Equations

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Suraj Doshi 2G
Posts: 100
Joined: Fri Aug 02, 2019 12:15 am

Heisenberg's Indeterminancy Equations

Postby Suraj Doshi 2G » Thu Oct 17, 2019 10:27 pm

Why are there two equations related to Heisenburgs indeterminancy?

One being: deltaP = (mass of an electron)*deltaX

The other being: deltaP * deltaX >= h/4pi

Alexa Mugol 3I
Posts: 54
Joined: Sat Aug 17, 2019 12:17 am

Re: Heisenberg's Indeterminancy Equations

Postby Alexa Mugol 3I » Thu Oct 17, 2019 11:08 pm

ΔpΔx >= h/4pi is the main equation we use when finding uncertainty in position/momentum. I believe the other one you're talking about is Δp=mΔv. We use this one to find Δp for the main equation. The reason why there's Δv and not Δm is because mass stays constant and there's no uncertainty to mass, there's only uncertain to velocity. Hope this helps!

Posts: 52
Joined: Fri Aug 30, 2019 12:15 am

Re: Heisenberg's Indeterminancy Equations

Postby AndreiRekesh1I » Thu Oct 17, 2019 11:24 pm

I think the second equation you're referring to is the definition of momentum, the first one is related to indeterminacy

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