Answer to Question #104719 in Astronomy | Astrophysics for Nikhil

Question #104719

If the temperature of the background radiation today is 3 K, at what time after the birth of
the universe was the temperature 1015 K. Take the age of the universe as 15×109
years.

Expert's answer

Use this equation

"T=\\frac{10^{10}}{\\sqrt{t}}"

"t=10^{-10} s"

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