In 1965 arno penzias and robert wilson discovered the, Ask an Expert

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In 1965 Arno Penzias and Robert Wilson discovered the cosmic background radiation (this is the radiation left over from the Big Bang!)

a) If the average energy density of this background radiation is 3.88 x 10-14 J/m3, what is the corresponding rms value of the electric field?
b) What is the corresponding maximum magnitude of the magnetic field?
c) What is the intensity of the background radiation?

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