Question 47:
Why does a ship made of iron and steel float in water whereas a small piece of iron sinks in it ?
Lakhmir Singh Physics Class 9
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Ship is not a solid block of iron and steel. A ship is a hollow object made of iron and steel which contains a lot of air in it. Air has a very low density. Due to the presence of a lot of air in it, the average density of the ship becomes less than the density of water, therefore, a ship floats in water
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Answer:
A ship made of iron and steel is a hollow object which contains a lot of air in it. Due to the presence of a lot of air in it, the average density of the ship becomes less than the density of water. Hence a ship floats in water. On the other hand, a piece of iron is denser than water, so it sinks in water.
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