Question

What is Principle of Floatation?

Answer

Principle of Floatation is:
A body floats on a liquid when the weight of the liquid displaced by its equal to its weight.
if w > w′ body will sink.
w = w′ body will float being wholly immersed anywhere in the liquid
w < w′ body will float being partially immersed in the liquid
where w = weight of body.
w′ = weight of the liquid displaced by the body.