Because it is the ratio of two quantities that have the same dimensions (mass per unit volume), specific gravity has no dimension. Specific gravity (G) is defined as the ratio between the weight of a substance and the…

## What is dimensional expression?

The dimensional formula is defined as the expression of the physical quantity in terms of its basic unit with proper dimensions. For example, dimensional force is. F = [M L T-2]

## Is refractive index a dimensional constant?

Explanation: Relative density, refractive index and Poisson ratio all the three are ratios, therefore they are dimensionless constants.

## Is acceleration due to gravity a dimensional constant?

Acceleration due to gravity is represented by g….

Acceleration Due to Gravity (g)
Symbol g
Dimensional Formula M0L1T-2
SI Unit ms-2
Formula g = GM/r2

## What is the dimensional formula of dielectric constant?

If C is the value of the capacitance of a capacitor filled with a given dielectric and C0 is the capacitance of an identical capacitor in a vacuum, the dielectric constant, symbolized by the Greek letter kappa, κ, is simply expressed as κ = C/C0. The dielectric constant is a number without dimensions.

## Is Relative density is a dimensional constant?

Relative density of a substance is defined as the density of a substance divided by the density of water. Hence, it is a pure ratio and has no dimensions. Therefore, relative density is dimensionless.

## Which of the following is dimensional constant?

Gravitational constant also known as universal gravitational constant has a symbol G and has a dimension [M−1L3T−2] while others are dimensionless constant.

## Is universal gas constant a dimensional constant?

Or, G = [M1 L-1 T-2] × [M0 L3 T0] × [M0 L0 T0 K1]-1 = [M1 L2 T-2 K-1]. Therefore, the Universal Gas Constant is dimensionally represented as [M1 L2 T-2 K-1].

## Is magnification a dimensional constant?

Answer. Because Although it is a constant, it has dimensions which is : M^-1L³T^-2. While others do not has any dimension.