Enemy or foe is an individual or a group that is seen as forcefully adverse or threatening. The concept of an enemy has been observed to be basic for both individuals and communities.
A diffractometer (pronunciation: di-frak-'tÃ¤-m&-t&r) is a measuring instrument for analyzing the structure of a material from the scattering pattern produced when a beam of radiation or particles (such as X-rays or neutrons) interacts with it. Principle
Spectrophotometry is a quantitative measurement of the reflection or transmission properties of a material as a function of wavelength. It is more specific than the common term electromagnetic spectroscopy which deals with visible light near ultraviolet and near infra-red. Then, add the solute which would be the blank for the experiment. 2  It is important not to add water to the blank so that it wonât affect the accuracy of the results. 3  As a next step, the spectrophotometer is set to the desired wavelength. 4  Insert the blank cuvette, making sure that the arrow is aligned each time.