Problem
A. Describe the spectrum of a "blackbody" and how its shape and size depends on the temperature. Make a graph showing the spectrum of a number of blackbodies at different temperature
B. Describe the modern model of the atom. Include descriptions of how the mass is distributed, the composition of the nucleus and electron energy levels.
C. Describe the spectrum of the Sun.
D. Describe the Doppler Effect and give at least two ways that it can affect the spectrum of a star.