Sound is produced at one end of a long steel bar. How many times the sound are heard. Justify your answer
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The sound will be heard tow time. once through solid medium and the other thought air.
Explanation:
- Two sounds will be heard at the other end of the steel bar.
- The reason is that Sound travels fastest through solids.
- In liquid or gas medium the molecules are far apart from each other while in a solid medium molecules are much closer together allowing sound waves to travel more quickly through it.
- In fact, sound waves travels 17 times more faster through solids / steel medium than through air.
- Thus the sound will be heard tow time. once through solid medium and the other thought air.
Also learn more
The speed of sound in air is 332 m/s if the volume of nitrogen (molecular wt.28)and oxygen (mol. Wt. 32)in air in ratio 4:1 then find out the speed of sound in oxygen ?
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