Can a rainbow be seen without natural(sun) light?

In order to see a rainbow you'll need two ingredients:light and a refracting medium like water droplets or a prism. So the correct answer to your question is, Yes a rainbow can be seen without natural sunlight. read more

So the correct answer to your question is, Yes a rainbow can be seen without natural sunlight. A rainbow appears when the light gets split up into its 7 different colours: red, orange, yellow, green, blue, indigo and violet. Sometimes referred to as “Roy G. Biv” Sunlight is a mixture of colors. read more

If the sun is setting or rising, a full half-bow can be seen. If the sun happens to be 42-degrees or higher above the horizon you won't be able to see a rainbow because it would be below the horizon. read more

The white light emerges from the prism split up into individual beams of different colors. The colors coming out of the prism, and in the rainbow, too, thus come from light, sunlight in the rainbow's case. Sunlight is white light, but white light actually contains all of the colors of the rainbow all ready for you to see, but blended together. read more