Heisenberg Uncertainty Principle equation. (1 Viewer)

[whackymac]

I have seen in some textbooks such as Jacaranda that the equation for uncertainty is (delta)x.(delta)p = h/2pi.

However, some other sources such as Wikipedia - Uncertainty principle - Wikipedia, the free encyclopedia, says that (delta)x.(delta)p = h/4pi
[NOTE: h with a bar is h/2pi].

So my question is, which equation would you use for the HSC?

Thanks for reading this

 

[Aerath]

h/2pi. Jacaranda is a valid source when complaining to a teacher. Wikipedia isn't.

 

[Uncle]

[maths]\Delta x\Delta p \geq \frac{h}{2\pi }[/maths]

That is correct.


Even my first year university physics textbook (Physics for Scientists and Engineers 7ED by Serway and Jewett) says so.