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In the Standard Model, About When After the Big Bang

Question 36

Multiple Choice

In the standard model, about when after the Big Bang did the universe become transparent to radiation?

A) 10^-43 s
B) 10^-³⁵ s
C) 10³ s
D) 3 × 10⁵ y
E) 3 × 10⁶ y

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