How Rainbows Form

The video explores why the sky is darker above a rainbow, using concepts like refraction, dispersion, and reflection of light. It explains how light bends when moving between air and water, causing a spectrum of colors. The video details how rainbows form, why red light appears higher than violet, and why the sky is lighter below a rainbow. It also covers the phenomenon of double rainbows, where light reflects twice inside water droplets, flipping the color order. The explanation includes why certain colors appear brighter and how maximum angles affect color visibility.

What happens to light when it moves from air to water?

• It speeds up and bends away from the normal.

• It slows down and bends towards the normal.

• It maintains its speed and direction.

• It speeds up and bends towards the normal.

Why does violet light bend more than red light in water?

• Violet light has a longer wavelength.

• Violet light travels slower in water.

• Violet light is absorbed more by water.

• Violet light travels faster in water.

Why is the sky darker above a rainbow?

• The sun is directly above the rainbow.

• The water droplets absorb all the light above the rainbow.

• No light can escape above the red light's maximum angle.

• All colors are at maximum brightness above the rainbow.

What causes the formation of a second rainbow?

• Light is scattered twice inside the droplet.

• Light is absorbed twice inside the droplet.

• Light refracts twice inside the droplet.

• Light reflects twice inside the droplet.

How are the colors arranged in a double rainbow compared to the primary rainbow?

• The colors are the same in both rainbows.

• The colors are inverted in the double rainbow.

• The double rainbow has fewer colors.

• The double rainbow has more colors.