Saved Bookmarks
| 1. |
A T.V. tower has a height 100m. What is the population density around the tower if total population covered is 50 lakh ? Given radius of earth =6.3xx10^(6)m. |
|
Answer» Solution :Given `h=100m,R=6.3xx10^(6)m,` Population COVERED `=50` lakh `50xx10^(5)` Radius of circle WITHIN which transmission is OBSERVED `d=sqrt(2hR)=sqrt(2xx100xx6.3xx10^(6))`m Area in which transmission can be VIEWED `A=pid^(2)=3.142xx2xx100xx6.3xx10^(6)` `=3.9589xx10^(9)m^(2)` `A=3.9589xx10^(3)km^(2)` `:.` Average population density `sigma=(50xx10^(5))/(3.9589xx10^(3))=1263xx10^(2)` `=1263km^(-2)` |
|