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The Earth
Question
Discuss the stages considered by the Big Bang Theory in the development of the universe.
Solution
The Big Bang Theory considers the following stages in the development of the universe.
(i) In the beginning, all matter forming the universe existed in one place in the form of a “tiny ball” (singular atom) with an unimaginably small volume, infinite temperature and infinite density.
(ii) At the Big Bang the “tiny ball” exploded violently. This led to a huge expansion. It is now generally accepted that the event of big bang took place 13.7 billion years before the present. The expansion continues even to the present day. As it grew, some energy was converted into matter. There was particularly rapid expansion within fractions of a second after the bang. Thereafter, the expansion has slowed down. Within first three minutes from the Big Bang event, the first atom began to form.
(iii) Within 300,000 years from the Big Bang, temperature dropped to 4,500K and gave rise to atomic matter. The universe became transparent.The product of the moment of inertia and the angular velocity of a rotating body is called its angular momentum.
(i) In the beginning, all matter forming the universe existed in one place in the form of a “tiny ball” (singular atom) with an unimaginably small volume, infinite temperature and infinite density.
(ii) At the Big Bang the “tiny ball” exploded violently. This led to a huge expansion. It is now generally accepted that the event of big bang took place 13.7 billion years before the present. The expansion continues even to the present day. As it grew, some energy was converted into matter. There was particularly rapid expansion within fractions of a second after the bang. Thereafter, the expansion has slowed down. Within first three minutes from the Big Bang event, the first atom began to form.
(iii) Within 300,000 years from the Big Bang, temperature dropped to 4,500K and gave rise to atomic matter. The universe became transparent.The product of the moment of inertia and the angular velocity of a rotating body is called its angular momentum.
Some More Questions From The Earth Chapter
Describe Nebular hypothesis origin of planets.
What is the basic difference in the arguments related to the origin of the earth given by :
(a) Kant and Laplace
(b) Chamberlain and Moulton?
(a) Kant and Laplace
(b) Chamberlain and Moulton?
What is Nebula ?
Define Planetesimals
Why do planets differ in size and temperature ?
Name one galaxy.
Which theory is also called expanding universe hypothesis ?
Who was the first to propose the Nebular hypothesis ?
When was the earth formed ?
Discuss the stages considered by the Big Bang Theory in the development of the universe.
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