g Consider a monoatomic square array having one atom of mass M at each corner of the unit cell of edge a. Assume that atoms only move in the plane of the lattice and only nearest neighbors interact. Find the normal modes frequencies.

a is the answer to this question

explanation:

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.