Question

how many colours in a rainbow? name them​

Answer 1

Answer:

Rainbows appear in seven colors because water droplets break white sunlight into the seven colors of the spectrum (red, orange, yellow, green, blue, indigo, violet). You can only see a rainbow if the Sun is behind you and the rain in front.

Answer 2

Explanation:

seven colours: red, orange, yellow, green, blue, indigo and violet.