Physics
Answer
The law of floatation states that — "When a body floats in a liquid, the weight of the liquid displaced by its immersed part is equal to the total weight of the body".
i.e., while floating
Weight of the floating body = Weight of the liquid displaced by its immersed part (i.e., buoyant force)
Related Questions
A cork piece floats on water surface while an iron nail sinks in it. Explain the reason.
Which of the following will sink or float on water? (Density of water = 1 g cm-3)
- Body A having density 500 kg m-3
- Body B having density 2520 kg m-3
- Body C having density 1100 kg m-3
- Body D having density 0.85 g cm-3
The diagram given below shows a body floating in three different liquids A, B and C at different levels.
(a) In which liquid does the body experience the greatest buoyant force?
(b) Which liquid has the least density?
(c) Which liquid has the highest density?
The density of water is 1.0 g cm-3. The density of iron is 7.8 g cm-3. The density of mercury is 13.6 g cm-3. Answer the following:
(a) Will a piece of iron float or sink in water?
(b) Will a piece of iron float or sink in mercury?