[" A solid sphere of iron at "2^(@)C" is lying at the bottom "],[" of a bucket full of water at "2^(@)C" .If the temperature "],[" of the water is increased to "3^(@)C" ,the buoyant force "],[" on the sphere due to water will "],[(1)" Increase "],[" (2) Be unchanged "],[" (2) Decrease "],[" (4) Increase or decrease depends upon the numerical "],[" value of coeficient of expansion of water and iron."]