what do you mean by buoyancy?

Buoyancy is the upward force exerted by a fluid (liquid or gas) on an object immersed in it. This force opposes the weight of the object and helps it float or appear lighter.

Examples:

• A boat floats on water due to buoyancy.

• A helium balloon rises in the air because of the buoyant force exerted by air.

• Swimmers feel lighter when they are in a swimming pool.

According to Archimedes' Principle, the buoyant force acting on an object is equal to the weight of the fluid displaced by it.

In simple terms: Buoyancy is the upward push provided by a fluid that helps objects float or reduces their apparent weight.