n/ Ch Homework x | w) Syllabus for AST 2010 Ch 4 Precess of Stienc × Calendar xC
ID: 153603 • Letter: N
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n/ Ch Homework x | w) Syllabus for AST 2010 Ch 4 Precess of Stienc × Calendar xC The Spectrum CfABC Chegg.corm https://ncia.vwnorton.com/12380 Ch 4 Process of Science: Atmospheres 82% 57@wayne.edu 09/20/18 22nd attempt See Hint The specific wavelength of a set of spectral lines depends not only the type of material that is creating them but also on the relative speed of that material to the observer. This is caused by the Doppler effect, which is demonstrated in this interactive figure (requires Flash). For tips on using the interactive figure, click on the hint. Experiment with this figure and use your observations to select all of the correct answers below. Note that blueshifted spectral lines appear shorter in wavelength than they otherwise would, and redshifted wavelengths appear longer. Choose one or more: A. An object moving transversely from an observer will have its spectral lines blueshifted. O B. An object moving toward an observer will have its spectral lines blueshifted. O C. An object moving transversely (side-to-side but not toward or away) from an observer will have its spectral lines redshifted. D. There will be no change in the spectral lines of an object that is moving transversely from an observer E. An object moving away from an observer will have its spectral lines blueshifted. F. There will be no change in the spectral lines of an object that is moving toward or away from an observer 21st attemot 1011 > 9 OF 11QUESTIONS COMPLETED SUBMIT ANSWER 211 PM 912018 Type here to searchExplanation / Answer
Correct answers are as follows -
B. An object moving toward an observer will have it spectral lines Blue shifted.
D. There will be no change in the spectral lines of an object that is moving transversely from an observer.
F. There will be no change in the spectral lines of an object that is moving towards or away from and observer.
Explanation - a spectral line is the dark of brightline emerging from discharging of absorption of light in a narrow frequency range compared with the nearby frequencies. It is used to pinpoint atoms and molecules. Redshift and blueshift describe how light shift towards shorter or longer wavelength as objects in space move closer or farther away from us. If object moves closer the right moves to the blue hence called blue shifted and when objects move away from the observer is called as Red shifted. For example if stars and Galaxies are traveling away from us then frequency of the light the producers decreases and the colour will be of red and of the spectrum therefore it is called as a red shift. Redshift is opposite of blue shift in blue Shift there is decrease in wavelength with increase in frequency.
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