optical path = μ x geometricalpath

optical power means living

A power play is when the opposing team has a penalty. a penalty is when you have a penalty and are trying to kill it off.

Yes but a complex curve will not have a simple or single optical power.

Optical Energy, better known as Optical Power, is the converging strength of a lens. As an example a lens with a high Optical Power will have a wider range of view but less focal distance. A lens with low Optical Power will have a longer focal distance but less range of view.