Use the first graph above (comparing stars E & F) to answer 1-3. Assume that sta
ID: 2303988 • Letter: U
Question
Use the first graph above (comparing stars E & F) to answer 1-3. Assume that stars E & F are the same size.
1) Which star gives off more red light?
2) Which star gives off more blue light?
3) Which star looks redder?
Use the middle graph (comparing stars E & C) to answer 4-8.
4) Which peaks at a longer wavelength?
5) Which has a lower surface temperature?
6) What color will each star appear?
7) Which has a greater energy output?
8) How must star C be different from star E to account for their difference in energy output?
Use the last graph (comparing stars E & D) to answer 9 - 11.
9) What color will each star appear?
10) Which star has a greater surface temperature?
11) Which star is larger?
Visible Kange Visible Range i Star E Visible Star E- Range StarD 8000 I I8000 I Star F Star C VIBGYOR Wavelength VIBGYOR Wavelength VIBGYOR Wavelength 2013 Pearson Education, Inc.Explanation / Answer
1) Star E gives off more red light, since intensity at R is higher in star E.
2) Star E gives off more ble lght, since intensity at B is higher in star E.
3) Star F looks redder because its radiation curve peaks at R.
4) Both stars peak at appoximately same wavelength.
5) Both stars have same surface temperature, since the spectra of both stars peak at same wavelength.
6) Both stars will appear violet since their spectra peak beyond V.
7) Star E has greater energy output, since area under the spectral curve is greater for star E.
8) Star C is smaller n size as compared to star E therefore its energy output is smaller than star E.
9) Star E will appear violet and star D will appear red.
10) Star E has greater surface temperature, because its spectrum peaks at shorter wavelengths.
11) Star D is larger since area uncer the spectral curve s more as compared to star E.
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