# Uncertainity Problem

string_theory
Hi dear virtual friends,

I am now going to ask you something. I would be pleased if you would answer me.

In an exam I was asked to show that for a particle in a box of width length L , delta (x)delta(p)>=h/(4*pi) holds.
I think this is not a logical question. Because I think it is like asking something like this: Prove A using A.

I would be really grateful if you would write something regarding this.
Thank you.

P.S. My problem is not envolving you in doing my homework. I just wanted to know if what I think is right or wrong.