Answers

2014-06-07T17:28:01+05:30
BY Keplers's IIIrd law
Time period T²=kR³
where R is distance of the earth from sun
so if R'=R/4
T'²=KR'³
T'²=KR³/64
T'²=T²/64
T'=T/8
so the answer is c)
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2014-06-07T18:26:29+05:30
One eighth of the present year
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