physical science
posted by layla .
the wavelength of an electromagnetic wave is ____________.
a. directly proportional to its frequency
b.inversely proportional to its velocity
c. inversely proportional to its frequency
d. none of the above

You might begin here, with a GOOGLE Search:
http://www.google.com/search?q=wavelength+of+an+electromagnetic+wave&ie=utf8&oe=utf8&aq=t&rls=org.mozilla:enUS:official&client=firefoxa
Sra
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