Arrange the colors of light in the visible spectrum in order of decreasing frequency.

Answer:
Violet > indigo > blue > green > yellow > orange > red .
Explanation:
The colors in the VIBGYOR , which can be seen in the visible light are as follows -
Violet , indigo , blue , green , yellow , orange and red .
Since in order of wavelength is as follows -
red > orange > yellow > green > blue > indigo > violet .
The value of frequency is inversely proportional to the wavelength .
Hence ,
The order of the colors in the decreasing order of the frequency is as follows -
Violet > indigo > blue > green > yellow > orange > red .