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.



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