GK
THE UNIVERSE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
True
|
|
|
False
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -The key assumption of this model is that just before the Big Bang, space was filled with an unstable form of energy, whose nature is not yet known. At some instant, this energy was transformed into the fundamental particles from which arose all the matter we observe today. That instant marks what we call the Big Bang.
Detailed explanation-2: -In the first moments after the Big Bang, the universe was extremely hot and dense. As the universe cooled, conditions became just right to give rise to the building blocks of matter – the quarks and electrons of which we are all made.
Detailed explanation-3: -The early universe was so hot, that as it has expanded and cooled, the highly energetic photons from that time have had their wavelengths stretched tremendously. The cosmic microwave background we observe today is evidence of what the early universe was like.