Question

why relative density has no unit

Answer 1

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$\huge\red\bold{Why relative density have no unit ?: }$

Relative density =Density of medium /density of water

》》 Now ....

As it is a ratio of two same quantities

So...

Their units cancel each other

And hence Relative density has no unit .

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Answer 2

ANSWER. Relative density is the ratio of density of a substance to the density of water at 40 C .Since the units for both the numerator and denominator are same, they cancel each other. Thus relative density has no units. Density is defined as mass per unit volume. Hence its SI unit is: kg/m3.

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