Question

A sphere of iron and another of wood, both of the same radius are placed on the surface of water. State which of the two will sink? Give reason to your answer

ICSE Class 9 Physics Chapter Upthrust in Fluids,Archimedes Principle and Floataion

Answer 1

Answer:

The sphere made of iron

Explanation:

Iron when compared to wood has a relatively higher density when taken in the same amount.

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Answer 2

Answer:

Sphere of iron will sink.

Explanation:

If an object is placed in a liquid, it will float on the liquid only if the density of the object is less than the density of the liquid.

The density of wood is less than the density of water while the density of iron is more than the density of water. Therefore wood will float in the water while the sphere of iron will sink inside the water.

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