1. What are the three components of light and what are their units?
2. What component determines which color we perceive?
3. How is light produced in an atom? What is the difference between absorption and
emission?
4. One of the energy equations you should be familiar with is c = Xf, which means "the
speed of light (c = 3 x 10 m/s) = wavelength (A) multiplied by frequency (f). If you have a
light wave with a wavelength of 620 nm (this is orange light :), what is its frequency?