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As per your syllabus, the dimensions of the gravitational constant G are which?
A[M L T⁻²]
B[M⁻¹ L T⁻²]
C[M⁻¹ L³ T⁻²]
D[M L² T⁻²]
Answer & Solution
Correct answer: C. [M⁻¹ L³ T⁻²]
Your syllabus: F = Gm₁m₂/r²
⇒ G = Fr²/(m₁m₂) has dimensions [M L T⁻²][L²]/[M²] = [M⁻¹ L³ T⁻²].
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