Ill give brainliest pls !
how are electromagnetic waves different from mechanical waves...
Ill give brainliest pls !
how are electromagnetic waves different from mechanical waves?
select one:
a. electromagnetic waves are all high frequency; mechanical waves are all low frequency.
b. electromagnetic waves can travel through a vacuum; mechanical waves require a medium.
c. electromagnetic waves are visible; mechanical waves are invisible.
d. electromagnetic waves always reflect; mechanical waves always refract.
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