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If an astronomical light source were moving toward us, then what would be observed? (a) a blue shift (b) a shift toward longer wavelengths (c) a shift toward lower frequencies (d) a sonic boom
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If an astronomical light source were moving toward us, then what would be observed?

(a) a blue shift
(b) a shift toward longer wavelengths
(c) a shift toward lower frequencies
(d) a sonic boom

User Haren S
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1 Answer

3 votes
a) blueshift.  This corresponds to higher frequencies, shorter wavelengths
User ViNull
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