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Q.

Is it true that the sound is not conducted by metals but is radiated?


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a

True

b

False  

answer is B.

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Detailed Solution

The above statement is False.
Sound propagation through any medium is via the vibration of molecules within the medium. The vibration of one molecule is passed on to the next molecule, and so on. However, the speed at which sound travels in different media is different. For example, in metals, sound travels faster when compared to air because the molecules in metals are closely packed.
Sound waves travel through metals as they travel through any other medium—via the vibration of the medium's molecules.
 
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