the light emitted by sodium in the lab is 589nm. this same light identified in a
ID: 1449346 • Letter: T
Question
the light emitted by sodium in the lab is 589nm. this same light identified in a remote galaxy, but with a wavelength of 750nm. calculate the sped and direction of the remote galaxy. Answer is 6.5x10^(7) m/s. Just need the work. the light emitted by sodium in the lab is 589nm. this same light identified in a remote galaxy, but with a wavelength of 750nm. calculate the sped and direction of the remote galaxy. Answer is 6.5x10^(7) m/s. Just need the work. the light emitted by sodium in the lab is 589nm. this same light identified in a remote galaxy, but with a wavelength of 750nm. calculate the sped and direction of the remote galaxy. Answer is 6.5x10^(7) m/s. Just need the work.Explanation / Answer
effective wavelength = actual wavelength ( 1+ v/c)
where c is the velocity of light
750/589 = 1 + v/c
v = 0.2733c
v = 8.2 x 10^7 m/sec ( moving away from the lab)
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