The shape of a raindrop becomes spherical primarily due to surface tension. Surface tension causes water molecules at the surface to contract, pulling the raindrop into the shape with the least surface area, which is a sphere. This phenomenon occurs ...
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The principle of purification by soap relies on surface tension. Soap molecules disrupt surface tension, allowing them to surround and lift away dirt and oil from surfaces. This process enables effective cleaning by ensuring that contaminants are dispersed and washed ...
Oil spreads on the surface of water because the surface tension of oil is less than that of water. This causes oil molecules to spread out more easily, forming a thin layer on the water’s surface. This phenomenon occurs due ...
The great scientist Archimedes belonged to Greece. He was born in Syracuse, a Greek colony in Sicily, around 287 BC. Archimedes made significant contributions to mathematics, physics, engineering, and astronomy, and is considered one of the greatest mathematicians of all ...
Any boat will sink if it displaces water equal to its weight. According to Archimedes’ principle, the buoyant force acting on an object immersed in a fluid is equal to the weight of the fluid displaced by the object. Therefore, ...