Question

The relative density _____. A) has unit of kg/m³ B) has unit of g/m³ C) has unit of kg/m² D) is unitless

GSEB - Class 9 Chapter - 3.Gravitation Page 43

Answer 1

Answer:

The relative density  is unitless

Explanation:

The relative density  is unitless

as it is the ratio of two densities so unnits of densities get cancelled.

Hence Relative denisty does not have any unit and is unit less.

Relative density is the ratio of the density of a substance to the density of a standard, usually water for a liquid or solid, and air for a gas.

Relative density also called  specific gravity, is the ratio of the density of a substance to the density of a given reference material.

Specific gravity generally used for  relative density with respect to water. The term "relative density" is often preferred in scientific usage.

The relative density  is unitless

Answer 2

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IT IS UNITLESS

• It is basically the ratio between two densities .
• So, the units of the ratio of the densities get cancelled off .