hoffmant510 hoffmant510
  • 09-02-2016
  • Physics
contestada

true or false all waves need a medium in order to travel

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Аноним Аноним
  • 09-02-2016
No light does not need medium to travel.Its an electromagnetic(EM) wave.All EM waves travel independent of medium. In contrast mechanical waves need a medium,sound waves,shock waves are mechanical and they need medium to transfer energy or travel.
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