What's the right equation?

[Joanne Kang 3I]

Is the right equation △p△m ≥(h/4π) or △p△m ≥(1/2)h???
Lavelle and the solutions manual say different things...

[Tiffany Dong_4e]

If you're referring to the Heisenberg Uncertainty Equation, it should be the first one.

[christabellej 1F]

Both are the same equation. This is because the h is actually h bar and stands for h/2pi. 1/2 (h bar) would then be the same as the first equation as it is h/4pi.

[Ariel Davydov 1C]

If I'm thinking of the same question you're referring to (1B.27), there is an error in the solutions manual that Lavelle noted in his "Solution Manual Errors 7th Edition" PDF on his website. In this question, the textbook utilized that equation (1/2 h) instead of the one taught in class. If you refer to his correction, this question makes a lot more sense. Hope this helps!

[105311039]

It should be the first equation!

[lauraxie2e]

the first one should be the equation for heisenburg's uncertainty principle

[ValerieChavarin 4F]

I was confused about this too, but its the first equation with the 4pi.

[Hannah Romano 4D]

it should be the first equation for simplicity purposes. the second equation is the same thing as long as the "h" there is supposed to be an "h bar".