Electronvolt is equal to . It is a common unit of energy within physics, widely used in solid state, atomic, nuclear, and particle physics. It is commonly used with the metric prefixes milli-, kilo-, mega-, giga-, tera-, peta- or exa- (meV, keV, MeV, GeV, TeV, PeV and EeV respectively). In some older documents, and in the name Bevatron, the symbol BeV is used, which stands for billion (10) electronvolts; it is equivalent to the GeV. An electronvolt is the amount of energy gained (or lost) by the charge of a single electron moving across an electric potential difference of one volt.
Tera Pass approximately 3,500' from the lowest part of Logar, and descends approximately 2,000' into the Gardez river valley to the south. The pass receives heavy snowfall during the winter months, often to the point of being impassable. Snow tends to persist into the summer months on the north-facing side of the mountain ridge. The Tera Pass area is largely uninhabited, with only minor settlements on the north side of the pass. The pass is relatively secure, owing to the presence of ANP checkpoints, daunting geography and paved surface, which makes IED attacks more difficult. Tera Pass The Tera Pass is the