GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The shape of the universe
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The first primordial elements
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Red shifted galaxies
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Leftover heat from the Big Bang
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Detailed explanation-1: -The Cosmic Microwave Background (CMB) is the cooled remnant of the first light that could ever travel freely throughout the Universe. This ‘fossil’ radiation, the furthest that any telescope can see, was released soon after the ‘Big Bang’. Scientists consider it as an echo or ‘shockwave’ of the Big Bang.
Detailed explanation-2: -The cosmic microwave background represents the heat radiation left over from the Big Bang. It is the residual heat of creation i.e., the afterglow of the big bang, streaming through space these last 13.8 billion years like the heat radiation from a sun-warmed rock, reradiated at night.
Detailed explanation-3: -The actual temperature of the cosmic microwave background is 2.725 Kelvin.
Detailed explanation-4: -The cosmic microwave background (CMB) is electromagnetic radiation left over from an early stage of the universe in Big Bang cosmology. In older literature, the CMB is also variously known as cosmic microwave background radiation (CMBR) or “relic radiation".