Red is the colour at the top of a rainbow. It is the outermost colour in the arc and the most visible from a distance due to its brightness and longer wavelength in sunlight.
Class 5 NCERT English Santoor Chapter 3 The Rainbow solutions
class 5 english chapter 3 the rainbow question answer
In a rainbow, the colour red appears at the topmost part of the arc. It is the first and outermost band that we see in the sky. Red has the longest wavelength among all the rainbow colours, which is why it bends the least and appears at the top. It is usually the most visible and bright part of the rainbow and gives the rainbow a warm outer edge.
For more NCERT Solutions for Class 5 English Santoor Unit 2: My Colourful World Chapter 3 The Rainbow Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-5/english/chapter-3/