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Consider Earth and Sun isolated system. ...

Consider Earth and Sun isolated system. Earth moves around Sun in elliptical orbit. Now if the length of major axis for elliptical orbit is assumed to be half it's present value and consider also the masses of both Sun and Earth to be half of present value then the number of days in a year would be (A) 64.5 (B)129 (C) 182.5 (D) 730

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