The angle of diffraction is related to the wavelength. So each wavelength in the beams of sunlight, passing through a collection of droplets, are diffracted up, down, and sideways by the same amount. They, therefore, form a circular image. The earth-sun distance virtually ensures that the sunbeams are parallel and so the undiffracted direction will be at the centre of these concentric circles.
a rainbow is not shaped like a arc its a circle
A concentric circle.
Concentric Circles?
A concentric circle looks like a bullseye or a target. It is a big circle with littler circles inside of it with the same centerponit
The shadow of the airplane will appear at the center of the complete circle formed by the rainbow. This is because the shadow is always cast opposite to the direction of the sunlight, and the sunlight is directly behind the airplane when a complete circle rainbow is seen.
Concentric Circle
concentric
Concentric circles, are circles within circles. Each concentric circle on the surface of a disk represents a track, the narrower the circle is, the more data can be stored on the disk.
A circle inside another circle is called a concentric circle. This means that the circles share the same center point, with one circle contained entirely within the other.
*If two pair of tangent of inner circle making angles on the circumference of outer circle then the angles so formed are equal . *Any two tangent of inner circle within the outer circle's circumference are equal in length .
track
Non concentric circles are circles that do not share the same center point.