Why we don't see a spectrum of colours above water?
When a light ray enters the water it will become dispersed, and after reflecting from an object in the water, say a pencil, or just the bottom of the container, the ray will reflect out from the water surface.
In this case then also dispersion should become amplified. As the ray is not passing through 2 parallel interfaces, as in a glass slab so that effects may cancel due to overlapping, here it is passing through the top surface twice, first entering so dispersion must happen, then after reflecting from something inside, exiting from the surface. Shouldn't this increase the amount of dispersion?
Hence, if we place a white thing inside we should not see it as white.
Where am I wrong?
Here that stick is white-coloured, the ray is getting dispersed from water
Why is a diagram always depicted as
Doesn't a light ray going 'in' face dispersion, and upon coming 'out' that dispersion becomes exaggerated!? This wouldn't let us see white objects or any object in water of that own color, right?
Also, if I kept a board just above water surface , why I would not be able to get spectrum on it (according to my diagram I think it should but I don't get in real life) like prism??
Please explain clearly..I am damn confused?