Assuming a Hubble Time of 13

question 34

Multiple Choice

Assuming a Hubble time of 13.6 billion years and a constant rate of expansion of the universe,what was the scale factor of the universe 10.2 billion years ago (compared to today) ?

• A) 0.25
• B) 0.50
• C) 0.67
• D) 0.75

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