Question

Hi friends can anyone give me the correct answer of : The dimensions of refractive index and universal gravitational constant ☺️​

Answer 1

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

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Answer 2

Explanation:

Reflective index is a dimensionless quantity.

Refractive Index is defined as the relative speed at which light moves through a material with respect to its speed in vacuum. As both the values belong to same quantity (speed), units gets nullified. So Refractive Index is dimensionless quantity.

Dimensional Formula of Refractive Index= M^0 L^0 T^0

G = [M^1 L^1 T^-2] × [L]^2 × [M]^-2 = [M^-1 L^3 T^-2]. Therefore, the gravitational constant is dimensionally represented as [M^-1 L^3 T^-2].

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