Rankle #107 answer: wavelength of light (shortest to longest)

The answer

Rank by wavelength of light (shortest to longest)

1. 1Violet Light380 nanometres
2. 2Blue Light450 nanometres
3. 3Green Light550 nanometres
4. 4Red Light700 nanometres

Why this order

Ranked shortest to longest, Violet Light (380 nanometres) goes at the top and Red Light (700 nanometres) at the bottom.

The closest call is Violet Light (380 nanometres) against Blue Light (450 nanometres), only about 18% apart. That is the swap most likely to cost a point.

The biggest gap is between Green Light and Red Light, about 27% apart, so that boundary should be the easiest part of the order to get right.

These are the figures the game reveals after you submit. They are rounded; only the order is scored.

Difficulty: medium, judged by how close the tightest pair is.

How it was scored

right slot, one place out, two or more out. The score is how many items sit in the right slot, and only 4/4 is a win. Full rules on the how to play page.