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Q: S.I. unit of universal gravitational constant G is -
  • A. N kg⁻² /m²
  • B. N m2 kg⁻²
  • C. N/m
  • D. N kg/m
Correct Answer: Option B - S.I. unit of G (universal gravitational constant) is Nm² kg⁻². G = 6.67 × 10⁻¹¹ Nm² / kg².
B. S.I. unit of G (universal gravitational constant) is Nm² kg⁻². G = 6.67 × 10⁻¹¹ Nm² / kg².

Explanations:

S.I. unit of G (universal gravitational constant) is Nm² kg⁻². G = 6.67 × 10⁻¹¹ Nm² / kg².