What are the colors of the rainbow and how many colors?

Answer 1

Red, orange, yellow, green, blue, violet, indigo .

Seven(7) colours.

NB When observing a rainbow in the sky;-

Red is always on the outside of the bow.

Inigo(blue) is always on the inside of the bow.

Outside the red arc, the sky is darker, (light bending)

Inside the indigo arc, the sky is lighter, (light bending again).

When observing a rainbow, the centre of the rainbow is in a direct line between the Sun(at your back), you and the rainbow centre.

NNB The angle from the centre line of the rainbow to the arc is 42 degrees.

NNNB A very bright rainbow will produce a reflected rainbow outside the primary rainbow; the colours are reversed.