Gravitation Question 272
Question: The time period of a satellite of earth is 5 hours. If the separation between the earth and the satellite is increased to four times the previous value, the new time period will become [AIIMS 1995; AIEEE 2003]
Options:
A) 20 hours
B) 10 hours
C) 80 hours
D) 40 hours
Show Answer
Answer:
Correct Answer: D
Solution:
$ [T_{2}=T_{1}{{\left( \frac{R_{2}}{R_{1}} \right)}^{3/2}}=T_{1}{{(4)}^{3/2}}=8T_{1}=40hr] $
