Multiple Choice
If you found a galaxy with an Hα emission line that had a wavelength of 756.3 nm,what would be the galaxy's distance if the Hubble constant is 70 km/s/Mpc? Note that the rest wavelength of the Hα emission line is 656.3 nm.
A) 650 Mpc
B) 760 Mpc
C) 3,200 Mpc
D) 6,400 Mpc
E) 7,600 Mpc
Correct Answer:
Verified
Correct Answer:
Verified
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