Question

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1. The relative density of lead is 11.3. Its density is ...g cm-3 or. kg m-3
A
1.13*20kg/m²
В.
11.13* 104 kg/m3
С.
1.13 x 104 kg/m3
D.
21.13* 104 kg/m3

Answer 1

Answer:

The density of lead = 11.3 g/cm³ or 1.13 × 10⁴ kg/m³

Explanation:

Here,

The relative density of lead is given.

We have to find the density of lead.

Relative density of lead =  Density of lead / Density of water  

Density of lead = Relative density of lead × Density of water

 

Given,

• Relative density of lead = 11.3

•  Density of water = 1 g/cm³ = 1000 kg/m³

Substituting the above density values in the equation.

Density of lead = 11.3 × 1 g/cm³  = 11.3 g/cm³

We have to find the density of lead in kg/m³ also.

Substituting the value of density of water in kg/m³ in the equation  

Density of lead = 11.3 × 1000 kg/m3³ = 1.13 × 10⁴ kg/m³

The density of lead = 11.3 g/cm³ or 1.13 × 10⁴ kg/m³