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] $



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