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If an EM wave has a wavelength of 400nm,what is its frequency? What kind of wave is it?

User SteveR
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Answer:

Electromagnetic waves are categorized according to their frequency f or, equivalently, according to their wavelength λ = c/f. Visible light has a wavelength range from ~400 nm to ~700 nm. Violet light has a wavelength of ~400 nm, and a frequency of ~7.5*1014 Hz.

Step-by-step explanation:

User Keturn
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electromagnetic wave 7.5 * 10 14 HZ

User Nowaker
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