Q.

In which media does sound travel fastest at a particular temperature?


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a

Air

b

Water

c

Iron

d

Oil 

answer is C.

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Detailed Solution

Iron sound travels fastest at a particular temperature.
The elasticity of the medium affects how quickly sound travels. It moves more quickly in solids because they have the largest degree of flexibility. Since elasticity is lower for liquids and lowest for gases, it declines in liquids while becoming slower in gases. Sound, therefore, travels through iron at the fastest speed for a given temperature.
 
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