Physics, 28.11.2019 06:31 Naikayah

The universe is filled with photons left over from the big bang that today have an average energy of about 2 × 10−4 ev (corresponding to a temperature of 2.7 k). as derived in lecture, the number of available energy states per unit volume for photons is

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The universe is filled with photons left over from the big bang that today have an average energy of...