<P> ROYGBIV or Roy G. Biv is an acronym for the sequence of hues commonly described as making up a rainbow: red, orange, yellow, green, blue, indigo and violet . </P> <P> A rainbow spans a continuous spectrum of colors; the distinct bands are an artifact of human color vision . In ROYGBIV, the colors are arranged in the order of decreasing wavelengths: red is about 650 nm and violet about 400 nm . The acronym is memorable because Roy is a male given name, so Roy G. Biv sounds like a first name, middle initial, and a last name . </P>

What does the g stand for in vibgyor
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