In a spectroscopic binary, if a pair shows a combined set of lines tonight, but a maximumsplit two nights later, its orbital period must be:
A)one day.
B)two days.
C)four days.
D)eight days.
E)twelve days.

Question

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The Answer of In a spectroscopic binary, if a pair shows a combined set of lines tonight, but a maximumsplit two nights later, its orbital period must be:
A)one day.
B)two days.
C)four days.
D)eight days.
E)twelve days.

In a Spectroscopic Binary, If a Pair Shows a Combined