Question

will the buoyant force be more or less when the body displaces greater volume of liquid?give reason?

Answer 1

Buoyancy force is equal to the weight of liquid or fluid displaced.  Weight is equal to Volume of fluid multiplied by density.  Hence the force is directly proportional to the volume of liquid displaced.

Force = W = M g = Volume * density * g

Hence the force is more when a body displaces more liquid