Doppler effect
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An important line in the absorption spectrum of stars occurs at a wavelength of 656 nm for stars at rest. Imagine that you observe five stars (A-E) from Earth and discover that this absorption line is at the wavelength shown in the table below for each of the five stars.
Data for five stars
Star
Wavelength of Absorption Line
A
660 nm
B
649 nm
C
647 nm
D
656 nm
E
658 nm
Based on the information in the table above, which star is not moving relative to the Earth?
Star D
Star A
Star B
Star E
Star C
Star D
An important line in the absorption spectrum of stars occurs at a wavelength of 656 nm for stars at rest. Imagine that you observe five stars (A-E) from Earth and discover that this absorption line is at the wavelength shown in the table below for each of the five stars.
Data for five stars
Twitch
Google Slic
Star
Wavelength of Absorption Line
A
660 nm
B
649 nm
C
647 nm
D
656 nm
658 nm
Based on the information. in the table above, which star has the greatest redshift?
Star D
Star A
Star C
Star E
Star B
Star A
An important line in the absorption spectrum of stars occurs at a wavelength of 656 nm for stars at rest. Imagine that you observe five stars (A-E) from Earth and discover that this absorption line is at the wavelength shown in the table below for each of the five stars.
Data for five stars
Twitch
Googl
Star
Wavelength of Absorption Line
A
660 nm
B
649 nm
647 nm
D
656 nm
E
658 nm
Based on the information in the table above, which star has the greatest blueshift?
Star A
Star D
Star E
Star C
Star B
Star C
An important line in the absorption spectrum of stars occurs at a wavelength of 656 nm for stars at rest. Imagine that you observe five stars (A-E) from Earth and discover that this absorption line is at the wavelength shown in the table below for each of the five stars.
Data for five stars
Star
Wavelength of Absorption Line
A
660 nm
B
649 nm
C
647 nm
D
656 nm
E
658 nm
Based on the information in the table above, which star is moving with the greatest speed toward Earth?
Star C
Star D
Star A
Star E
Star B
Star c
Imagine our solar system is moving in the Milky Way Galaxy toward a group of three stars.
Star A is a red star that is slightly closer to us than the other two.
Star B is a blue star that is farthest away from us.
Star C is a yellow star that is halfway between Stars A and B.
Which of these three stars, if any, will give off light that appears to have no shift?
None of the stars
Stars A. B. C
Star B
Star A
Star C
None of the stars
An important line in the absorption spectrum of stars occurs at a wavelength of 656 nm for stars at rest. Imagine that you observe five stars (A-E) from Earth and discover that this absorption line is at the wavelength shown in the table below for each of the five stars.
Data for five stars
Star
Wavelength of Absorption Line
A
660 nm
B
649 nm
C
647 nm
D
656 nm
E
658 nm
Based on the information.in the table above, which star is moving with the greatest speed away from the Earth?
Star E
Star C
Star B
Star D
Star A
Star A
Imagine our solar system is moving in the Milky Way Galaxy toward a group of three stars.
Star A is a red star that is slightly closer to us than the other two.
Star B is a blue star that is farthest away from us.
Star C is a yellow star that is halfway between Stars A and B.
Which of these three stars, if any, will give off light that appears to be redshifted?
Star B
Star C
•None of the stars
Star A
Stars A, B, C
None of the stars
The wavelengths of radiation from a star that is moving perpendicular to our line of sight
A) can be longer or shorter depending on the distance to the star
B) are the same as if the star were not moving
C) are shorter than if the star were not moving
D) are longer than if the star were not moving
B) are the same as if the star were not moving
The wavelengths of radiation from a star that is moving away from us
A) are longer than if the star were not moving
B) can be longer or shorter depending on the distance to the star
C) are the same as if the star were not moving
D) are shorter than if the star were not moving
A) are longer than if the star were not moving
A bright star is moving toward Earth. If you were to look at the spectrum of this star, what would it look like?
A)a continuous spectrum that is redshifted relative to an unmoving star
B)an emission spectrum that is blueshifted relative to an unmoving star
C)an absorption spectrum that is blueshifted relative to an unmoving star
D)an emission spectrum that is redshifted relative to an unmoving star
E)an absorption spectrum that is redshifted relative to an unmoving star
F)a continuous spectrum that is blueshifted relative to an unmoving star
C)an absorption spectrum that is blueshifted relative to an unmoving star
Chapter 5 Question 32, page 132: 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
A)redshifted
Imagine our solar system is moving in the Milky Way Galaxy toward a group of three stars.
Star A is a red star that is slightly closer to us than the other two.
Star B is a blue star that is farthest away from us.
Star C is a yellow star that is halfway between Stars A and B.
Which of these three stars, if any, will give off light that appears to be blueshifted?
Star A
None of the stars
Star B
Stars A. B, C
Star C
Star a, b, c