Question
Physics Question on Keplers Laws
satellite revolve in radius R has a time period of revolution T. Find time period of a satellite if orbital radius is 9R?
A
33T
B
9T
C
27 T
D
93T
Answer
27 T
Explanation
Solution
According to Kepler's law of periods T2∝R3 So,⇒T2T1=(R2R1)23 ⇒T2T=(9RR)23=271[∵T1=T] T2=27T