Question
Sound travels fastest in which
medium? ÂSolution
Sound needs a medium to travel; it travels fastest in solids, especially metals like iron.  In solids, particles are tightly packed, allowing faster vibrations.  In gases, particles are far apart, so sound is slowest.  Sound cannot travel in vacuum.
A mixture of milk and water weighs 96 liters, where the quantity of milk is 33â…“% of the quantity of water. How much milk needs to be added so that the...
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