CurlsOnRayne CurlsOnRayne

29-05-2017
Chemistry

contestada

which waves always require matter in order to propagate?
a. Heat waves
b. Light waves
c. Sound waves
d. Transverse waves

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Аноним Аноним

12-06-2017

I believe the correct answer is sound waves. It is the sound waves that always need matter or a medium in order to propagate. Sound waves are mechanical waves that has different characteristics to electromagnetic waves which does not requires a medium to travel. Mechanical waves depend on the particles interaction for it to travel hence a medium is needed.

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