What is an absorption spectrum? How can you get it?

Spectra of incandescent solids or liquids heated to high temperatures, crossed by dark lines, are called line absorption spectra. These lines are obtained due to the absorption of light waves of certain lengths.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.