hoffmant510 hoffmant510

09-02-2016
Physics

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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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