Potential energy and separation graph

[anmolnanda]

http://img835.imageshack.us/i/anmol.png/


the graph is as per the link
but my question is that at a particular point the potential energy becomes zero...is thre any significance for it?

 

[Sourabh N]

It looks like http://poole.stfx.ca/Members/jpaddon/tutorials/graph.gif". Simply put, it's a combination of attractive and repulsive forces. When far away, particles (under this kind of potential) experience repulsion; when close, they are attracted.

Do you get this kind of potential from some simulation? or experiment? or from theory?

Suggestion - You should be more descriptive, both in the figure and in the question you ask.