Integrated Science
7th Edition
ISBN: 9780077862602
Author: Tillery, Bill W.
Publisher: Mcgraw-hill,
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Chapter 7, Problem 6CQ
To determine
The relative temperatures of the two stars where one star is reddish and the other is bluish.
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Students have asked these similar questions
What can be said about the relative temperatures of whitish-yellow, reddish, and bluish stars? Explain.
At what wavelength would a star radiate the greatest amount of energy if the star has a surface temperature of 60,000 K?
a.
50 nm
b.
500 nm
c.
300 nm
d.
1.8 × 1011 nm
e.
180 nm
1. The temperature of stars in the universe varies with the type of star and the age of the star among other things. By looking at the shape of the spectrum of light emitted by a star, we can tell something about its average surface temperature.
a. If we observe a star's spectrum and find that the peak power density occurs at the border between red and infrared light, what is the approximate surface temperature of the star? (Remember to include units)Incorrectb. If we observe a star’s spectrum and find that the peak power density occurs at the border between blue and ultraviolet light, what is the surface temperature of the star? (Remember to include units)Incorrect
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Chapter 7 Solutions
Integrated Science
Ch. 7.1 - Prob. 1SCCh. 7.1 - Prob. 2SCCh. 7.1 - Prob. 3SCCh. 7.2 - Prob. 4SCCh. 7.2 - Prob. 5SCCh. 7.2 - Prob. 6SCCh. 7.2 - Prob. 7SCCh. 7.3 - Prob. 8SCCh. 7.3 - Prob. 9SCCh. 7.4 - Prob. 10SC
Ch. 7.4 - Prob. 11SCCh. 7.5 - Prob. 12SCCh. 7 - What determines if an electromagnetic wave emitted...Ch. 7 - Prob. 2CQCh. 7 - Prob. 3CQCh. 7 - Prob. 4CQCh. 7 - Prob. 5CQCh. 7 - Prob. 6CQCh. 7 - Prob. 7CQCh. 7 - Prob. 8CQCh. 7 - Prob. 9CQCh. 7 - Prob. 10CQCh. 7 - Prob. 11CQCh. 7 - Prob. 12CQCh. 7 - Prob. 13CQCh. 7 - Prob. 14CQCh. 7 - Prob. 15CQCh. 7 - Prob. 16CQCh. 7 - Prob. 17CQCh. 7 - Prob. 18CQCh. 7 - Prob. 1PEACh. 7 - Prob. 2PEACh. 7 - Prob. 3PEACh. 7 - Prob. 4PEACh. 7 - Prob. 5PEACh. 7 - Prob. 6PEACh. 7 - Prob. 7PEACh. 7 - Prob. 8PEACh. 7 - Prob. 9PEACh. 7 - Prob. 10PEACh. 7 - Prob. 1PEBCh. 7 - Prob. 2PEBCh. 7 - Prob. 3PEBCh. 7 - Prob. 4PEBCh. 7 - Prob. 5PEBCh. 7 - Prob. 6PEBCh. 7 - Prob. 7PEBCh. 7 - Prob. 8PEBCh. 7 - Prob. 9PEBCh. 7 - Prob. 10PEB
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- Go outside on a clear night, wait 15 minutes for your eyes to adjust to the dark, and look carefully at the brightest stars. Some should look slightly red and others slightly blue. The primary factor that determines the color of a star is its temperature. Which is hotter: a blue star or a red one? Explainarrow_forwardSuppose a star 1000 times brighter than our Sun (that is, emitting 1000 times the power) suddenly goes supernova. Using data from Table 7.3: (a) By what factor does its power output increase? (b) How many times brighter than our entire Milky Way galaxy is the supernova? (c) Based on your answers, discuss whether it should be possible to observe supernovas in distant galaxies. Note that there are on the order of 1011 observable galaxies, the average brightness of which is somewhat less than our own galaxy.arrow_forwardWhat is the temperature of a star whose maximum light is emitted at a wavelength of 290 nm?arrow_forward
- Explain what Joseph Fraunhofer discovered about stellar spectra.arrow_forwardWhat will be the energy associated with a red photon, if the wavelength of the red light is 650 nm? [Hint: Find the frequency of red light first to calculate the energy. Recall: c = .f] A. 650x10° J B. 6.5x10 J C. 4.6x1014 J D. 3.0x10-19 J E. 3.0x1019 Jarrow_forwarda. Does a hot, thin gas emit a continuous spectrum, a bright line spectra with gaps between the lines, or a dark line spectra with all frequencies except the missing (absorbed) one? b. Why do we see dark line spectra when we look at stars? c. Both hydrogen and helium glow and absorb red. Are they the same frequency of red? d. A hot solid iron plate and a hot solid aluminum plate are the same temperature. Do the give off the same range of frequencies?arrow_forward
- Temperatures of two stars are in ratio 3:2. If wavelength of maximum intensity of first body is 4000 Å, what is corresponding wavelength of second body?a) 9000 Åb) 6000 Åarrow_forwardState whether it is true that “the A spectrum is AM0 and the B spectrum is AM1.5”. Explain why B is weaker than A across the whole wavelength range. Show how you estimate the surface temperature of the Sun using the given spectrum.arrow_forwardNormal human body temperature is about 37°C. What is this temperature in kelvins? What is the peak wavelength emitted by a person with this temperature? What color is this? Explainarrow_forward
- 1. If the maximum wavelength in the sun spectrum Amax =480 nm and a = 2.89x103 K.m calculate the sun surface temperaturearrow_forward1. The temperature of stars in the universe varies with the type of star and the age of the star among other things. By looking at the shape of the spectrum of light emitted by a star, we can tell something about its average surface temperature. a. If we observe a star's spectrum and find that the peak power density occurs at the border between red and infrared light, what is the approximate surface temperature of the star? (Remember to include units)b. If we observe a star’s spectrum and find that the peak power density occurs at the border between blue and ultraviolet light, what is the surface temperature of the star? (Remember to include units) Submit QuestionQuestion 1arrow_forwardb) An incandescent lightbulb and a thin gas cloud are in space. An observer viewing with the perspective of the arrow in the attached diagram would see A. an absorption line spectrum. B. an emission line spectrum. C. a continuous spectrum. Reset Selection ple give explinationarrow_forward
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