If the ratio of orbital distance of two planets d1/d2 is equal to 2 what is the ratio of gravitational field experienced by the two planets ?
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E=-Gm/r^2
E1=-Gm/d1^2
E2=-Gm/d2^2
given d1/d2=2
d2= d1/2 so in E2
E2=-Gm/(d/2)^2=-Gm×4/d1^2=4E1
E1=-Gm/d1^2
E2=-Gm/d2^2
given d1/d2=2
d2= d1/2 so in E2
E2=-Gm/(d/2)^2=-Gm×4/d1^2=4E1
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