1.Units, Dimensions and Measurement
easy

Which of the following is a dimensional constant?

AGravitational constant
BRelative density
CRefractive index
DPoisson ratio
(AIPMT-1995)

Solution

Gravitational constant also known as universal gravitational constant has a symbol $G$ and has a dimension $\left[ M ^{-1} L ^3 T ^{-2}\right]$ while others are dimensionless constant.
Standard 11
Physics

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