Question

Hii friends...

Definition for ARCHIMEDES PRINCIPAL....

Answer 1

When a body is immersed whether it is fully immersed or floating ,an upward buoyant force acts on it which is equal to weight of displaced liquid

Buoyant force = Volume immersed in liquid ×density of liquid × g

Because density of liquid = mass of liquid /volume of liquid

As density would be constant for displaced liquid

let V be volume displaced

So d = m/V

m = dv
And we know weight = mg

So weight = dvg

which is volume immersed × density × g

as aforementioned

So its just weight of displaced liquid