Question

What do you mean by buoyancy hence define buoyant force?

Answer 1

hey mate here is ur answer
Buoyancy - the tendency of a liquid to exert an upward force on the object immersed in it is called buoyancy
buoyancy force - it is an upward force which act on an object when it is immersed in liquid it is called upthrust
hope it helps u

Answer 2

Answer:

whenever an object is immersed in a liquid , either partially or fully , an upward force is exerted on the object by the liquid, This upward force is called upthrust or buoyant force or force of buoyancy an the property of the fluid to which the upthrust is exerted on the object is called buoyancy.