Optics - Image Formation, Diffraction, and Polarization
Image formation, interference, and polarization are studied in several experiments which include measurements of the focusing properties of a positive lens, determination of the wavelength of laser light by multiple wave interference, and the measurement of the intensity of light transmitted by crossed polarizers.
Lab Guide (PDF)

Optics lab. (Image courtesy of Junior Lab staff.)
References
Schawlow, A. L. "Measuring the Wavelength of Light with a Ruler." Am J Phys 33 (1965): 922-932.
Hecht, Eugene. "Lasers." Chapter 13 in Optics. 4th ed. San Francisco, CA: Addison-Wellesley, 2002. ISBN: 0805385665.