Question

The correct answer is 7800 kg m-³.Plesse explain how

Answer 1

Answer:

7800 kg/m³

Step-by-step explanation:

Given :

A piece of iron when immersed in water taken in a Eureka can displace 25 ml of water. It's mass is 195g .

Find the density in kg/m³.

Solution :

We know that,

Volume of Iron = Volume of water displaced,.

Density = $\frac{mass}{volume} = \frac{195}{25} = 7.8g/cm^3$

⇒ When  it gets converted to kg/m³,.

We know that,

Density of water = 1 g/ml = 1000 kg/m^3,.

Same implies for iron too,

We get,

⇒ $7.8 \times 10^3 kg/m^3 = 7800 kg/m^3$