A) 16 days
B) 2 days
C) 4 days
D) 8 days
Correct Answer: D
Solution :
Key Idea: Time period of parking orbit is 1 day. From Keplers third law \[{{T}^{2}}=k{{R}^{3}}\] where, T is time period and R is radius of earth. Given, \[{{T}_{1}}=1\,day,{{R}_{2}}=4{{R}_{1}}\] \[\therefore \] \[\frac{{{T}_{2}}}{1}={{\left( \frac{4{{R}_{1}}}{{{R}_{1}}} \right)}^{3/2}}\] \[\Rightarrow \] \[{{T}_{2}}={{(4)}^{3/2}}=8\,days\]
You need to login to perform this action.
You will be redirected in
3 sec
