The mass of Planet X is one-tenth that of the Earth

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

1. The mass of Planet X is one-tenth that of the Earth, and its diameter is one-half that of the Earth. The acceleration due to gravity at the surface of Planet X is most nearly (A) 2 m/s22 \mathrm{~m} / \mathrm{s}^{2} (B) 4 m/s24 \mathrm{~m} / \mathrm{s}^{2} (C) 5 m/s25 \mathrm{~m} / \mathrm{s}^{2} (D) 7 m/s27 \mathrm{~m} / \mathrm{s}^{2} (E) 10 m/s210 \mathrm{~m} / \mathrm{s}^{2}

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