![fig. 7.1](slide0023_image046.png)
Wavelength (l): Distance between two consecutive peaks [unit: nm]
Frequency (n): Number of waves per second that pass a given point in space [unit: s-1 (Hertz)]
l n = c
Where
C is the speed of light
&
C = 2.9979«108 m/s
Recall
that Frequency and Wavelength are related where frequency times
wavelength equals the speed of light.
Since the speed of light is a constant, as wavelength decreases,
then frequency must increase.
*Write this equation on top of page 9-7.
*