- #1

Winzer

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## Homework Statement

A 1ns pulse of electromagnetic waves would be 30cm long.

a) Consider such a pulse of 633 nm wavelength laser light. Find its central wavenumber and the range of wave numbers it is comprised of.

b) Repeat a except for a 1ns pulse of 100MHz radio

waves.

## Homework Equations

[tex] k=\frac{2\pi}{\lambda}[/tex]

## The Attempt at a Solution

I got the central wavenumber with the above equation. But I am at a lost on where to go from there.