Question

can we ever avoid dispersion of white light in a prism?

Answer 1

Answer:

1666 Sir Isaac Newton studied the effect of passing a beam of light through a triangular glass prism. He completely darkened his study and made a small hole in the window shutters to let in a fine beam of sunlight

Answer 2

Answer:

Dispersion of Light’ can be defined as the splitting of white light when it passes through a glass prism into its constituent spectrum of colors (i.e. violet, indigo, blue, green, yellow, orange and red). Dispersion figuratively means ‘distribution’ and hence that’s exactly what is happening in the picture above. The white light splits into its constituent colors at various frequencies and various angles.