$\Delta p \Delta x\geq \frac{h}{4\pi }$

Louise Zhuang
Posts: 31
Joined: Fri Sep 28, 2018 12:28 am

What is the minimum uncertainty in the speed of an electron confined to within a lead atom of diameter 350. pm?
Is the uncertainty in position 350. pm in this problem?

Alyssa Bryan 3F
Posts: 61
Joined: Fri Sep 28, 2018 12:26 am
Been upvoted: 1 time

### Re: About Uncertainty in position

The uncertainty in position would be 350. pm, but in order to apply it to the equation you need to convert this to meters so the units will align with one another.

Haowen_Liang_3E
Posts: 20
Joined: Fri Apr 06, 2018 11:03 am

### Re: About Uncertainty in position

I believe the diameter of the atom is twice of "delta x," it looks like the question wants you to put 1/2 of that diameter into the uncertainty equation in delta x and solve of velocity.

Michelle Nwufo 2G
Posts: 61
Joined: Fri May 18, 2018 3:00 am

### Re: About Uncertainty in position

Haowen_Liang_3E wrote:I believe the diameter of the atom is twice of "delta x," it looks like the question wants you to put 1/2 of that diameter into the uncertainty equation in delta x and solve of velocity.

So, to confirm that I am solving this problem correctly, whenever the diameter is given, that represents the uncertainty in position-delta x? Also why would the problem want you to use only 1/2 of the diameter given?