Solution:Concept- In this case, sound waves must travel through a medium such as solid, liquid, or gas. As a result, we can distinguish the given option in these three categories, and the remaining option that does not satisfy in any of the categories is the answer.
Sound is a mechanical wave produced by the vibration of particles in the medium through which sound travels. If sound moves from left to right through air, then particles of the medium, namely air, will be displaced on both the right and left sides as the sound's energy passes through it.
The particle motion is parallel to the direction of energy transport. Sound waves now require mediums such as solids, liquids, or gases. Solid molecules are known to be densely packed. Liquids are not as densely packed as solids. Gas molecules are also less densely packed than solids and liquids.
Sound travels four times faster and farther in water than it does in air because the spacing between molecules allows sound to travel much faster through liquid than through gas. Sound waves are therefore travelling vibrations of particles in media such as air, water, wood, or metal. As a result, they are unable to travel through empty space, where there are no atoms or molecules to vibrate.
So, except for the vacuum option, all of the options are classified as solid, liquid, or gas, but there is no air or other gas present in the vacuum. As a result, sound waves cannot travel in a vacuum.
Hence, option 3 is the correct answer.