
1.1 Properties of Light 7
Figure 1.9. When light hits a surface with grooves such as that of a compact disk,
diffraction occurs which leads to interference and the formation of colors.
Collimating
mirror
Focusin
mirror
tector
Grating
Slit
Figure 1.10. Spectrometers use the diffraction effect in order to analyze light
into its component waveleng ...