Gravitation Question 304

Question: If the distance of earth is halved from the sun, then the no. of days in a year will be

Options:

A) 365

B) 182.5

C) 730

D) 129

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Answer:

Correct Answer: D

Solution:

  • From Kepler’s law of periods, [T2=T1(R2R1)3/2=365(/2)3/2] [=365×122=129,days]


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