The relative density of gold is `19.3` . The density of water os `10^(3) "kg m"^(-3)` ? What is the density of gold in S.I. unit ?

Explanation

To find the density of gold in SI units given its relative density and the density of water, we can follow these steps:

### Step 1: Understand the concept of relative density
Relative density (also known as specific gravity) is defined as the ratio of the density of a substance to the density of a reference substance (usually water). It is a dimensionless quantity.

### Step 2: Write down the given values
- Relative density of gold (Rd) = 19.3
- Density of water (ρw) = \(10^3 \, \text{kg/m}^3\)
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