Previous Year Question
Which of the following is not one of the seven colours of the rainbow?
A.
Blue
B.
White
C.
Orange
D.
Violet
Correct Answer: B
Detailed Solution
The seven colours of a rainbow are Violet, Indigo, Blue, Green, Yellow, Orange and Red, commonly remembered by the acronym VIBGYOR. NCERT also identifies these as the seven colours seen in a rainbow.
White is not one of the seven colours of the rainbow. Sunlight, which appears white, is separated into its constituent colours through refraction, internal reflection and dispersion in water droplets, producing a rainbow.