Question

stars hotter than the sun (over 6,000 degrees c) put out most of their light in the red regions of the spectrum. true false the intensity of the radiation in portions of the electromagnetic spectrum depends on the temperature of the star. true false what can we determine about a star using the electromagnetic spectrum? (choose all that apply) size temperature chemical makeup name

Explanation:

1. Hotter stars emit most light in blue - violet regions, not red. So the first statement is false.
2. The intensity - wavelength distribution of a star's radiation is related to its temperature by Wien's displacement law and Stefan - Boltzmann law, so the second statement is true.
3. From a star's electromagnetic spectrum, we can determine its temperature (Wien's law), and chemical makeup (absorption and emission lines), but not its name directly, and size is not directly determined from the spectrum alone.

Answer:

1. B. False
2. A. True
3. B. Temperature, C. Chemical Makeup