Gravitation Question 202
Question: The radius of orbit of a planet is two times that of the earth. The time period of planet is [BHU 2003; CPMT 2004]
Options:
A) 4.2 years
B) 2.8 years
C) 5.6 years
D) 8.4 years
Show Answer
Answer:
Correct Answer: B
Solution:
$ [T_{2}=T_{1}{{\left( \frac{R_{2}}{R_{1}} \right)}^{3/2}}=1\times {{(2)}^{3/2}}=2.8,,year] $
