Q.

Is it true that the speed of sound decreases as the density of the medium increases?


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a

True

b

False  

answer is B.

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Detailed Solution

The above statement is false.
The density and elasticity of the medium through which the sound travels determine its speed. In general, sound travels faster through liquids than through gases and faster through solids than through liquids. The faster sound travels in a medium, the higher the elasticity and the lower the density.
The correct statement is that the speed of sound increases as the density of the medium increases.
 
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