Question
Question: The time period of a satellite of earth is 5 hours. If the separation between the earth and the sate...
The time period of a satellite of earth is 5 hours. If the separation between the earth and the satellite is increased to 4 times the previous value, the new time period will become –
A
40 hours
B
20 hours
C
10 hours
D
80 hours
Answer
40 hours
Explanation
Solution
T2 µ r3 ; T¢2 µ (4r)3 or 
= 64 or 
= 8
or T¢ = 8 × 5h = 40 h