Question

What is meant by dispersion and recombination? Explain with the help of a diagram? Why are heating elements made of alloys rather than metals?

Answer 1

Answer:

heating materials made of alloys due to higher resistivity

dispersion is splitting of white light into its component colors to form spectrum due to different refractive indices for different colors.

recombination is when light of different wavelengths pass through a medium and re emerge as a single monochromatic light wave