Which of the following floats in water?

Correct option is B

The correct answer is (b) Cork.
· Cork floats in water because it has a lower density than water.
· The structure of cork consists of numerous air-filled cells, which make it buoyant and allow it to float.
· Objects float in water if their density is less than that of water, which is about 1 g/cm³. Cork's density is much lower than that, hence it remains afloat.
· Other objects like a coin, iron nail, and stone have densities higher than that of water, causing them to sink.
· ● The Archimedes' Principle explains that an object will float if it displaces a weight of water equal to its own weight.
Additional Information:
· Coin: Made of metal, usually denser than water, so it sinks.
· Iron nail: Metal nails have a high density and sink when placed in water.
· Stone: Stones are generally dense and do not have the air-filled structure that would allow them to float, so they sink.