Question

How many colors are present in the rainbow?
A. $$5$$
B. $6$
C. $7$
D. $8$

Answer 1

Hint:Rainbows are the cause of the reflection of light. It occurs when the rays of light from the sun strike the water droplets that reflect some of the light towards the observer. One can see the rainbow only if the sun will be behind and water droplets will be in front.

COMPLETE STEP BY STEP ANSWER:
Rainbow is a natural phenomenon that is caused due to the dispersion of light. They are formed when the light from the sun gets scattered from water droplets into the eyes of an observer. As we know that the sunlight consists of a spectrum of different colors that appears white when combines together. Also, the light travels slowly from water droplets than air. Therefore, when the sunlight passes through water droplets, it gets bent and becomes refracted due to the light splits into different colors forming the rainbow.
The light got split into seven constituents’ colors which are given below

RED: Red color is the first color in the rainbow. It is the first color because it has a very long
wavelength.

ORANGE: Orange is the second color of the rainbow and it is a mixture of red and yellow
color. It has a wavelength slightly less than the red color.

YELLOW: As it is clear from the above that yellow is the third color of the rainbow.

GREEN: Green is the fourth color in the rainbow because its wavelength is less than the
wavelength of yellow color.

BLUE: After the green color, there comes a blue color. It is the fifth color in the rainbow.

INDIGO: Indigo is the sixth color in the rainbow. It is the second last color in the rainbow.

VIOLET: Violet is the seventh and the last color in the rainbow. It is the last color because it
has very short wavelength.
Therefore, there are $7$ colors present in the rainbow.

Hence, option (C) is the correct option.

NOTE:As we know, there are seven colors in a rainbow. These colors are represented in short form as VIBGYOR. The wavelength of these colors decreases from red light to violet light. Therefore, red light has a maximum wavelength and violet light has a minimum wavelength.