astronomers : GMAT prep
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Got the first question correct! went wrong on the second one
Thus if the MACHO magnifies a star's red light ten fold, it will do the same for the star's blue light and yellow light.
Thus if the MACHO magnifies a star's red light ten fold, it will do the same for the star's blue light and yellow light.
The more you learn, the more you know, what you don't know.