Re: questions about light
- From: "Bob May" <bobmay@xxxxxxxxxxx>
- Date: Sun, 26 Mar 2006 12:55:52 -0800
ONe of the properties of any transparent material is that some of the light
is reflected and some is passed into the material. Even face on, about 4%
of the light is reflected off of a glass surface. Partially silvering a
surface will increase the reflected surface.
You change the wavelength of a light ray the same way that you do with any
electromagnetic wave - adsorb it with something and reradiate it afterwords
by some process. You can also change the apparent wavelength by putting it
into some material of a differing material.
By diffracting a light wave, you can measure it's wavelength.
The number of differing wavelengths into a fiber cable is just the same as
any other electromagnetic wave - the number of different wavelengths is
limited by your ability to resolve them.
--
Why do penguins walk so far to get to their nesting grounds?
.
- References:
- questions about light
- From: laura
- questions about light
- Prev by Date: Re: questions about light
- Next by Date: Re: questions about light
- Previous by thread: Re: questions about light
- Next by thread: Re: questions about light
- Index(es):
Relevant Pages
|
|
