Science Buddies: "Ask an Expert"

my projects on extreme uv

and i need help finding out if its mechanical or electromagnetic.
also if its transverse or longitude.

I'm not sure what you mean by "extreme uv" and what your project has to do with it.

"UV" is typically an abreviation for "ultra-violet" and refers to electromagnetic radiation that is a slightly shorter wavelength than the visible human eye's spectrum (just shorter than the wavelength of the visible color violet).

If you are referring to the draft ISO standard on determining solar irradiances (ISO-DIS-21348), then EUV is specifically the range between 121 nm and 10 nm.

In physics, "light" and shorter wavelength electromagetic radiation has exhibited both "photon" and "wave" behaviors so I'm staying out of any rehash of that debate. There is no definitive answer to that one.

"transverse" and "longitude" would be wave phase orientations and they can co-exist or one or the other can be predominant.

thanks craig.
but i still dont understand if its transverse or longitude.
and i have moe questions.
such as the wave length and wave speeds.

but i still dont understand if its transverse or longitude

Detecting the phase of a wave is much harder than detecting its amplitude and and wavelength (or frequence = inverse of wavelength) and is a fairly advanced subject area. What about your experiment requires you to know this? Unless your UV source is "coherent", then it WILL have a mixture of phases. Look up the definition of "coherent light" for more information.

and i have moe questions. such as the wave length and wave speeds.

Have you done any reading on wavelength of the light spectrum?
I'm not sure what you mean by "wave speeds". If you mean wave propagation speed, then that is a constant for any given material that will allow propagation. The constant for a vacuum is approximately 300,000 kilometers per second. http://en.wikipedia.org/wiki/Speed_of_light is a good starting point.
If you mean "wave frequency", then this is just the inverse (reciprical) of wavelength.

You are asking some very general and broad questions which tells me that you haven't done enough reasearch (search engine) reading to formulate more specific questions.