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 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?
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?
