If an electromagnetic wave has a frequency of 8 x 1014 Hz, what is its
wavelength? Use The speed of light is 3 x 108 m/s.

All electromagnetic waves move at the speed of light (3 x 108 m/s).  Thus, for any electromagnetic wave:

Step-by-step explanation:

c = νλ

Thus, the wavelength, λ, is:

λ = c

λ = (3 x 108 m/s)/(8 x 1014 Hz)  *Note: Hz =

λ = 3.75 x 10-7 m

but wavelength of an electromagnetic wave is usually given in nanometers, so:

λ = 3.75 x 10-7 m x (1 nm/(1 x 10-9 m)

λ = 375 nm

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