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NEET Physics QUESTION #7223
Question 1

The dimensions of the universal gravitational constant $G$ are:

  • $[ML^2T^{-1}]$
  • $[M^{-1}L^3T^{-2}]$✔️
  • $[M^{-1}L^2T^{-1}]$
  • $[M^{-1}L^3T^{-2}]$
Correct Answer Explanation

From Newton's law of gravitation: $F = \dfrac{Gm_1 m_2}{r^2}$

$[G] = \dfrac{[F][r^2]}{[m]^2} = \dfrac{MLT^{-2} \cdot L^2}{M^2} = M^{-1}L^3T^{-2}$