The Essential Cosmic Perspective (8th Edition)
8th Edition
ISBN: 9780134446431
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 32EAP
A spectral line that appears at a wavelength of 321 nm in the laboratory appears at a wavelength of 328 nm in the spectrum of a distant object. We say that the object’s spectrum is (a) redshifted. (b) blueshifted. (c) whiteshifted.
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You record the spectrum of a distant star using a telescope on the ground on Earth. Upon
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Tutorial
Star A has a temperature of 5,000 K and Star B has a temperature of 6,000 K. At what wavelengths (in nm) will each of these star's intensity be at its maximum?
If the temperatures of the stars increase, the wavelength of maximum intensity.
What is the temperature (in K) of a star that appears most intense at a wavelength of 829 nm?
Part 1 of 4
Wien's Law tells us how the temperature of a star determines the wavelength of maximum intensity or at what wavelength the star appears brightest.
2.90 x 106
TK
If the temperature is in kelvin (K) then A is in nanometers (nm).
Anm
^A =
AB =
=
Part 2 of 4
To determine the wavelengths of maximum intensity for the two stars:
2.90 x 106
2.90 x 106
K
nm
nm
H.M
1-What wavelength (in nanometers) is the peak intensity of the light coming from a star whose
surface temperature is 11,000 Kelvin? (Note: This is about twice the temperature of our Sun's
surface.)
2-Determine the surface temperature of a star whose maximum intensity is at 400nm.
Chapter 5 Solutions
The Essential Cosmic Perspective (8th Edition)
Ch. 5 - Prob. 1VSCCh. 5 - Prob. 2VSCCh. 5 - Prob. 3VSCCh. 5 - Prob. 4VSCCh. 5 - Prob. 5VSCCh. 5 - Define wavelength, frequency, and speed for light...Ch. 5 - Prob. 2EAPCh. 5 - Prob. 3EAPCh. 5 - Prob. 4EAPCh. 5 - Prob. 5EAP
Ch. 5 - What is electrical charge? Will an electron and a...Ch. 5 - Prob. 7EAPCh. 5 - Prob. 8EAPCh. 5 - Prob. 9EAPCh. 5 - Prob. 10EAPCh. 5 - Describe the Doppler effect for light and what we...Ch. 5 - Prob. 12EAPCh. 5 - Prob. 13EAPCh. 5 - Prob. 14EAPCh. 5 - Prob. 15EAPCh. 5 - Prob. 16EAPCh. 5 - Prob. 17EAPCh. 5 - Prob. 18EAPCh. 5 - Prob. 19EAPCh. 5 - Prob. 20EAPCh. 5 - Decide whether the statement makes sense (or is...Ch. 5 - Prob. 22EAPCh. 5 - Prob. 23EAPCh. 5 - Prob. 24EAPCh. 5 - Why is a sunflower yellow? (a) It emits yellow...Ch. 5 - Compared to red light, blue light has higher...Ch. 5 - Radio waves are (a) a form of sound. (b) a form of...Ch. 5 - Prob. 28EAPCh. 5 - Prob. 29EAPCh. 5 - Prob. 30EAPCh. 5 - Prob. 31EAPCh. 5 - A spectral line that appears at a wavelength of...Ch. 5 - Prob. 33EAPCh. 5 - Prob. 34EAPCh. 5 - Prob. 35EAPCh. 5 - Prob. 36EAPCh. 5 - Prob. 37EAPCh. 5 - Prob. 38EAPCh. 5 - Prob. 39EAPCh. 5 - Prob. 40EAPCh. 5 - Orion Nebula. Viewed through a telescope, much of...Ch. 5 - Prob. 42EAPCh. 5 - Prob. 43EAPCh. 5 - Prob. 44EAPCh. 5 - Prob. 45EAPCh. 5 - Prob. 46EAPCh. 5 - Prob. 47EAPCh. 5 - Prob. 48EAPCh. 5 - Prob. 49EAPCh. 5 - Prob. 50EAPCh. 5 - Prob. 51EAPCh. 5 - Prob. 52EAPCh. 5 - Prob. 53EAPCh. 5 - Prob. 54EAPCh. 5 - Prob. 55EAPCh. 5 - Prob. 56EAPCh. 5 - Prob. 57EAP
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