Wavelength of a transparent medicine

[mxhammed]

Summary:: Is there a way to find the wavelength of a transparent medicine without adding a color to it?

I have a transparent substance (medicine) . I cannot find out its wavelength without having to add color to it. However I don't want to change any of its characteristics. Is there a way to find its wavelength? Am I missing something here?

 

[berkeman]

Welcome to PhysicsForums.

Your question does not make sense as asked. A substance does not have an optical "wavelength" on its own. If it is clear/transparent, then you can shine whatever wavelength of visible light through it that you want. It may have an absorption characteristic in IR or UV that you could look for, assuming it were place in an appropriate container that was transparent for IR and UV.

BTW, is this question for schoolwork?

 

[mxhammed]

Thank you so much Berkeman.

Now I understand.

Actually it's a college project.

 

[berkeman]

Okay, thanks. I'll move the thread to the schoolwork forums then.