Gravitation Question 196
Question: The earth revolves round the sun in one year. If the distance between them becomes double, the new period of revolution will be [MP PET 2000]
Options:
A) 1/2 year
B) $ [2\sqrt{2}] $ years
C) 4 years
D) 8 years
Show Answer
Answer:
Correct Answer: B
Solution:
$ [\frac{T_{2}}{T_{1}}={{\left( \frac{r_{2}}{r_{1}} \right)}^{3/2}}={{(2)}^{3/2}}=2\sqrt{2}] $ Þ $ [T_{2}=2\sqrt{2}] $ years.
