Question

What frequency corresponds to an absorption line at 527 nm?

Answer 1

The frequency of the absorption is `5.69×10^14 color(white)(l)"s"^"-1"`.

Explanation:

The formula relating frequency and wavelength is

`color(blue)(|bar(ul(fλ=c)|)`

where `f` is the frequency, `λ` is the wavelength, and `c` is the speed of light.

We can rearrange the formula to get

`f = c/λ = (2.998×10^8 color(red)(cancel(color(black)("m")))"·s"^"-1")/(527×10^"-9" color(red)(cancel(color(black)("m")))) = 5.69 × 10^14color(white)(l) "s"^"-1"`