Which of the following is the correct order of colours found in sunlight?

Concept

White sunlight contains the colours of the visible spectrum. When arranged from shorter to longer wavelength, the sequence is violet, indigo, blue, green, yellow, orange, and red; the mnemonic VIBGYOR records their initials.

Application

1. Expand the letters of the standard sequence: V = violet, I = indigo, B = blue, G = green, Y = yellow, O = orange, and R = red.

2. Compare that wavelength order with the offered sequences. VIBGYOR preserves every colour in the required order.

3. Therefore, the required sequence is VIBGYOR.

Cross-check

Reading the spectrum from longer to shorter wavelength gives ROYGBIV. Reversing it gives VIBGYOR, which confirms the sequence.