Question

What is meant by buoyancy and buoyant force?

Answer 1

buoyancy is when an object is immersed inside the fluid, then an upward force is applied by the fluid on the object. and
This upward force exerted on the object is known as ‘Up thrust’ or ‘ Buoyant force’

Answer 2

Answer:

The upward force exerted by fluids (liquid and gas) on objects when they are immersed in them is called buoyant force and the phenomenon is called buoyancy. Now to keep the object immersed we have to apply external force from upward direction to overcome buoyant force.