If the diameter of the earth becomes twice but its mass remains unchanged, then how would be the weight of an object on the surface of the earth affected?

If the diameter of the earth becomes twice but its mass remains unchan

1.	If the diameter of the earth becomes twice but its mass remains unchanged, then how would be the weight of an object on the surface of the earth affected?
Answer» Solution :W = mg = `GMm/(2R)^2` = 1/4 W i.e., weight will become one-fourth of the PRESENT VALUE.