1- Stars A and B have the same surface temperature. Given that star A is actuall
ID: 1774039 • Letter: 1
Question
1- Stars A and B have the same surface temperature. Given that star A is actually much more luminous than star B, what can you conclude about the size of star A compared to star B?
2- Star A has a greater surface temperature than Star B. Given that Star A is actually just as luminous as Star B, what can you conclude about the size of Star A compared to star B?
3- If you were given a star’s absorption line spectrum and its corresponding spectral curve shown on an energy output per second verses wavelength graph, how could you approximate the temperature of the star?
4- Stars U and V have the same surface temperature. Given that star U is actually much more luminous than star V, what can you conclude about the size of star U compared to star V?
5- Star U has a greater surface temperature than Star X. Given that Star X is actually just as luminous as Star U, what can you conclude about the size of Star X compared to star U?
Explanation / Answer
1.
Star A must be larger than star B. Since they have the same temperature, the only other variable affecting the luminosity is the star’s surface area which is proportional to its size.
2.
Star B must be much larger since it has a lower temperature.
Pls post other questions separately.
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