http://digfir-published.macmillanusa.com/astro_tutorial/astro_tutorial_ch05_basic_properties_of_light.html
Chapter
5. Basic Properties of Light
51b7a499b62f8b1f58000018
http://digfir-published.macmillanusa.com/astro_tutorial/astro_tutorial_ch05_basic_properties_of_light_dlap.xmlDLAP questions51b7a499b62f8b1f58000018