Question

A wavelength of 850nm (8.5*10 -11m) is used for fiber optic transmission. What frequency is this?

Answer 1

\[8.5*10^{-11}m\]

Answer 2

\(\lambda*\nu=c\)

wavelength \(\lambda\), frequency \(\nu\), speed of light, c.

Answer 3

so in this problem I am looking for the frequency. the wavelength is 850 what is the speed of light?

Answer 4

\(c=3*10^8~m/s\), you need to match the units (i.e. use the wavelength in meters).

Answer 5

\[8.5*10^{-11}\] *v=\[3*10^{8}\]

Answer 6

yep, now isolate \(\nu\) algebraically and solve.

Answer 7

cool, thank you again

Answer 8

no problem