read before Wednesday

http://www.integraf.com/a-Types_of_Holograms.htm

http://hyperphysics.phy-astr.gsu.edu/hbase/optmod/holog2.html#c2

http://hyperphysics.phy-astr.gsu.edu/hbase/optmod/holog.html#c2

FYI:

http://www.integraf.com/a-holography_medical_applications.htm

HW

Please do a little reading/research in your text.  Have a working knowledge of:

voltage
current
resistance
Kirchoff's rules (both of them)

optional text problems

Chapter 37:  9, 11, 5, 15