Imagine a new planet having the same density as that of the earth, but it is two times bigger than the earth in size (radius). If the acceleration due to gravity on the surface of the new planet is $g'$ and that on the surface of the earth is $g$, then:
- A$g' = g/4$
- B$g' = 8g$
- C$g' = 2g$
- D$g' = 4g$
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