Answer :
A rainbow has colors, this has to do with refraction and measurement.
Answer:
When you reach down to the position you thought it to be, you will realize that the quarter is much deeper than it appears to be.
Explanation:
Refraction is the change in the speed or frequency of light at the boundary between two media. This causes the light rays to bend. Refraction in water causes objects to appear closer to the top of the water than they actually are. When you see the quarter from above, its position is called its APPARENT DEPTH. The depth at which the quarter is actually found is called its REAL DEPTH. The difference between the two is the lateral displacement of the quarter due to refraction. The real depth is much deeper than the apparent depth.
Refraction of light in water droplets in the atmosphere causes various components of visible light to move at different speeds. This is similar to what happens in prisms. Each water drop separates the components of white light to form a spectrum.