A satellite is launched into a circular orbit of radius 'R' around the earth. A second satellite is launched into an orbit of radius 1.03 R. The time period of revolution of the second satellite is larger than the first one approximately by
- 3%
- 2.5%
- 4.5%
- 9%
Answer
(3) 4.5%
Solution
Kepler: T R3/2 TT= 32 RR
[figure]
RR=3\%
TT=1.5 3\%=4.5\%
Answer: (3)