What are three main advantages of studying objects at different wavelengths of radiation?

Question

What are three main advantages of studying objects at different wavelengths of radiation?

thanks! so much!

Answer 1

Depends on how you study. If it has to do with spectroscopic analysis, it can tell you the chemical make-up of the object studied. Each wavelength represents a different element in the spectroscopic scale and can place it in the periodic table of elements in it's correct place thus breaking down each element of the object. You can therefore determine elements that make up the object. The final determination would be how those elements combine and therefore determine the compound you are analyzing.

Answer 2

You can get information about:
1. Their size. Example: the size of an object determines the maximum wavelength you can use to image it or to get a reflected return from it. In microscopy, some objects are too small to be seen in visible light but can be seen or imaged by X-rays; radar can't get a usable return from objects much smaller than the wavelength, etc.
2. Their composition. Knowledge of the line spectrum, if any, of emitted radiation enables determining the atomic and possibly molecular makeup.
3. Their temperature. Knowledge of the continuous spectrum of emitted radiation enables determining the temperature if it's blackbody radiation.