Which of the following is a dimensional constant? (a) Relative density (b) Gravitational constant (c) Refractive index (d) Poisson ratio

Answer: (b). Relative density, refractive index and Poisson ratio are ratios of like quantities, so dimensionless. G is a constant with dimensions [M⁻¹L³T⁻²]. So the answer is (b) gravitational constant.

Which of the following is a dimensional constant? | NEET 1995 (AIPMT)

Q109NEET 1995 · AIPMTEasy

Units & Dimensions

Which of the following is a dimensional constant?

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Answer: (b)

Relative density, refractive index and Poisson ratio are ratios of like quantities, so dimensionless.
$G$ is a constant with dimensions $[\mathrm{M^{-1}L^3T^{-2}}]$ .
So the answer is (b) gravitational constant.

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