Answer:
False , it's not a parabola.
Explanation:
Rainbow is light that is refracted from the sun in the atmosphere it occurs as a result of the sun's interaction with dust particles and raindrops which absorb the other end of the spectrum and give visible light in the form of a rainbow. The shape is in the form of an of the circle, seen at all the point from the sun rays i.e the angle between the sunlight and the fractured light into our eyes. It gets its semi-circular shape from the fixed angle of 40 and 42 degrees above the horizon.
