GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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random
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uniform
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increasing
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decreasing
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Detailed explanation-1: -THE temperature of the cosmic microwave background – the radiation bathing all of space – is remarkably uniform. It varies by less than 0.001 degrees from a chilly 2.725 kelvin. But while that might seem natural enough, this consistency is a real puzzle.
Detailed explanation-2: -For most of the 20th century, scientific thought was dominated by the idea of the uniformity of the universe and the uniqueness of laws of physics. Indeed, the cosmological observations indicated that the universe on the largest possible scales is almost exactly uniform, with the accuracy better than 1 in 10, 000.
Detailed explanation-3: -Whereas today’s Universe is immersed in cosmic background radiation with a temperature of 2.7 Kelvin (-270.45 °C), less than a billion years after the Big Bang its temperature was approximately 20 K (-253.1 °C).