Question

arrange the following colors into wavelengths
longest wavelength
1 violet
2 indigo
3 green
4 orange
5 yellow
6 blue
7 red
shortest wavelength

Explanation:

To arrange the colors by wavelength (longest to shortest), we use the order of the visible spectrum. The visible spectrum in order of decreasing wavelength (longest to shortest) is: Red, Orange, Yellow, Green, Blue, Indigo, Violet.

Step 1: Identify the longest wavelength color

The color with the longest wavelength in the visible spectrum is Red. So we place Red first.

Step 2: Next longest - Orange

After Red, the next longest wavelength is Orange.

Step 3: Then Yellow

Following Orange, Yellow has a longer wavelength than the subsequent colors.

Step 4: Then Green

Next is Green in the order of decreasing wavelength.

Step 5: Then Blue

After Green, Blue comes next.

Step 6: Then Indigo

Following Blue, Indigo has a longer wavelength than Violet.

Step 7: Shortest wavelength - Violet

Violet has the shortest wavelength among these colors.

Answer:

1. Red
2. Orange
3. Yellow
4. Green
5. Blue
6. Indigo
7. Violet