At the bottom of the page you will find links to whole websites that are useful for this topic.
Waves
Powerpoint
Revision
Crossword
Links
http://www.ewart.org.uk/science/Waves/wav_index.htm
Reflection
and Refraction Powerpoint
Links
http://acept.la.asu.edu/PiN/rdg/refraction/refraction2.shtml
http://www.ps.missouri.edu/rickspage/refract/refraction.html
http://schools.matter.org.uk/SchoolsGlossary/refractive_index.html
http://www.walter-fendt.de/ph14e/refraction.htm
Total Internal
Reflection Powerpoint
Links
http://www.phy.ntnu.edu.tw/java/light/flashLight.html
http://www.glenbrook.k12.il.us/gbssci/phys/Class/refrn/u14l3b.html
Optic Fibres Powerpoint
Links
http://floti.bell.ac.uk/MathsPhysics/fibre.htm
http://www.science.org.au/nova/021/021key.htm
Waves General Questions
Links
http://id.mind.net/zona/mstm/physics/waves/waves.html
http://www.ewart.org.uk/science/Waves/wav_index.htm
http://library.thinkquest.org/C005705/English/Waves/index.htm
http://www.thespectroscopynet.com/Educational/Diffraction.htm
http://physics.nad.ru/Physics/English/DG10/dg10.htm
Young's Slit Questions
Interference Questions
Links
http://vsg.quasihome.com/interfer.htm
http://www.kettering.edu/drussell/Demos/superposition/superposition.html
Wikipedia – definitions http://en.wikipedia.org/wiki/Category:Wave_mechanics
Jacaranda Physics - Complete textbook
http://www.jaconline.com.au/jacarandaphysics/jacarandaphysics1/weblinks.html
Light (goes further than you need for the exam, but good information
clearly presented)
http://ircamera.as.arizona.edu/NatSci102/lectures/light.htm
Lakeside - Complete textbook (other topics included)
http://www.lakesideschool.org/people/homepages/minor/PhysicsLinks.htm
Physics Classroom - Complete textbook
http://www.physicsclassroom.com/mmedia/waves/lw.html
Mind.net - Complete waves textbook
http://id.mind.net/~zona/mstm/physics/waves/waves.html
Hazelwood - Waves animations
http://www.hazelwood.k12.mo.us/~grichert/sciweb/waves.htm
Ewart - Complete textbook
http://www.ewart.org.uk/science/Waves/wav_index.htm
Wave Express - Complete waves textbook
http://library.thinkquest.org/C005705/English/Waves/index.htm
Zona Land - Excellent site linking maths and physics, with
a section on waves
http://id.mind.net/~zona/contents/contents.html
PhoolProof Physics – nice Unit on waves and another
on optics
http://library.thinkquest.org/15433