Differences

This shows you the differences between two versions of the page.

--- network:fiber-optics [2022/08/29 09:49] – mh
+++ network:fiber-optics [2022/08/31 11:02] – [Electromagnetic spectrum] mh
@@ Line 14: / Line 14: @@
 <WRAP round tip>
-$\lambda=\frac{1}{f}$ and $f=\frac{1}{\lambda}$ where $\lambda$ is wavelength ($nm$) and $f$ is frequency ($Hz$)
+$\lambda=\frac{c}{f}$ and $f=\frac{c}{\lambda}$ where $\lambda$ is wavelength ($nm$) and $f$ is frequency ($Hz$) and $c$ is the speed of light (approx. 2.10⁸ m/s)
 **As wavelength increases, frequency decreases.**
@@ Line 22: / Line 22: @@
 ==== Electromagnetic spectrum ====
+{{network:light_spectrum-cropped.png?1500}}
 <WRAP round tip>
-**Infra**-red and **Ultra**-violet are prefixed as such using **frequency** in mind :
+**Infra**-red and **Ultra**-violet are prefixed using **frequency** in mind :
   *infrared has a lower frequency than the red in the visible spectrum (thus a higher wavelength)