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An Object Has a Lookback Time of 1 Billion Years

Question 67

Multiple Choice

An object has a lookback time of 1 billion years. Assuming it is nonrelativistic, and that the Hubble constant is 22.4 km/s/Mly, what is its cosmological redshift?


A) 0.074
B) 0.126
C) 0.546
D) 1.89

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