Actually it is circular but usually the sun needs to be quite low in the sky for the angle of the sunbeams hitting the raindrops to be suitable to create a rainbow visible from the ground. But, when that happens, a part of the rainbow is cut-off by the horizon and so it appears semicircular.
Full circles are rare but have been seen/photographed.
semi-circle
A 3D semi circle
In reality, the shape of rainbow is a circle. The center of the circle is an imaginary line between the center of the sun and the head of the viewer.
No it is a irregular shape
Because the earth blocks you from seeing the full circle. You can use a misting garden hose to make a rainbow, and you'll see it's a full circle.
semi-circle
No. A rainbow is always round. On the ground, the bottom part is hidden, but in the sky, like from the view of a flying airplane, it can be seen as a round shape. Check the link below for more information:
A 3D semi circle
A semi-circle is a two dimensional shape.
A semi circle is a 2 dimensional shape
yes
In reality, the shape of rainbow is a circle. The center of the circle is an imaginary line between the center of the sun and the head of the viewer.
No it is a irregular shape
semi circle
it's a semi-sphere circle is to semi-circle as sphere is to semi-sphere
If you are in a airplane rainbows are actually a circle shape,but from our view it is semi-circle.
Yes.