What is the cause of dispersion of light?

What is dispersion of light? Explain it with a ray diagram. Explain the cause of dispersion of light.

What is dispersion of light ? Explain it with a ray diagram. Also explain the cause of dispersion of light.

What is dispersion of light?

What is the cause of acid rain ?

What is the cause of dysentery ?

Why is there no dispersion of light refracted through a rectangular glass slab ? Give reason.