Question

What is the wavelength of light with a frequency of `2.50 \times 10^13 s^-1` ?

Answer 1

`1.2*10^-5` kilometres

Explanation:

wavelength = speed / frequency

`3*10^8` / `2.5*10^13` = wavelength

wavelength = `1.2*10^-5` kilometres

hope that helped.
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