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Physics Question 46 – NEET-UG 2023

A satellite is orbiting just above the surface of the earth with period T. If d is the density of the earth and G is the universal constant of gravitation, the quantity 3πGd represents :
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Ninja StrategyDimensional Analysis

By analyzing the units of the given expression 3πGd and comparing them to the units of the options, one can quickly determine that only T2 has the correct dimensions.