Q.

Sound moves faster in:


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a

Solids

b

Liquids

c

Gas

d

Vacuum 

answer is A.

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Detailed Solution

Concept: The vibration of molecules and atoms in a small space produces sound as a kind of energy.
The speed of sound has different values ​​for each medium. The speed of sound is highest in solid media due to the relatively small intermolecular space between atoms in a solid and the significantly higher vibration intensity. However, the intramolecular distance between liquid and gas molecules is very small, and the vibration is also very weak. Therefore, sound waves travel much more slowly than solid media.
Hence, the correct option is 1.
 
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Sound moves faster in: