what colour would it appear to an observer on earth?
the ans is yellow but i dont know how?
2006-10-01 04:14:32 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
The light would go to a red shift so nearest colour to blue is green. The exact colour I don't know.
2006-10-01 04:40:15 · answer #1 · answered by Lab 7 · 0⤊ 0⤋
It is the Doppler's effect. The objects moving away red shift ( frequency is getting lower the wavelength is getting longer) and the objects moving towards you it blue shift the opposite of red shift. Since you have the speed you can calculate the exact red shift. It may be seen as yellow.
2006-10-01 05:16:07 · answer #2 · answered by Dr M 5 · 0⤊ 0⤋
compare the frequency of blue light and the frequency of yellow light, without doing the math myself, i am guessing the doppler shift will give the same ratio.
2006-10-01 05:34:33 · answer #3 · answered by disco legend zeke 4 · 0⤊ 0⤋
The light would appear to have a longer wavelength to an earch observer.
http://www.freesciencefairproject.com/biology/bacteria_counting.html
2006-10-01 04:21:53 · answer #4 · answered by DanE 7 · 0⤊ 0⤋