Points need answer mike wrote the characteristics of two types of galaxies as shown below: type a: forms a perfect sphere or a smooth flattened oval type b: has a large flattened core which statement is correct? type a is an elliptical galaxy and type b is a lens galaxy. type a is a lens galaxy and type b is an elliptical galaxy. type a is a spiral galaxy and type b is an elliptical galaxy. type a is an elliptical galaxy and type b is a spiral galaxy.

the correct answer is a

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.

how important do you think an instrument is to the musician who plays it?