Physics, asked by ayushdeep4231, 1 year ago

hi genius guys Please help me please tell what is the shape of the universe? give a correct reason for your answer? and remember no spamming

Answers

Answered by trisha46
2
Heya...

➡According to Einstein's theory of General Relativity, space itself can be curved by mass. As a result, the density of the universe — how much mass it has spread over its volume — determines its shape, as well as its future.

➡Scientists have calculated the "critical density" of the universe. The critical density is proportional to the square of the Hubble constant, which is used in measuring the expansion rate of the universe. Comparing the critical density to the actual density can help scientists to understand the cosmos.


➡If the actual density of the universe is less than the critical density, then there is not enough matter to stop the expansion of the universe, and it will expand forever. The resulting shape is curved like the surface of a saddle. This is known as an open universe.

➡If the actual density of the universe is greater than the critical density, then it contains enough mass to eventually stop its expansion. In this case, the universe is closed and finite, though it has no end, and has a spherical shape. Once the universe stops expanding, it will begin to contract. Galaxies will stop receding and start moving closer and closer together. Eventually, the universe will undergo the opposite of the Big Bang, often called the "Big Crunch." This is known as a closed universe. [Images: Peering Back to the Big Bang & Early Universe]

➡However, if the universe contains exactly enough mass to eventually stop the expansion, the actual density of the universe will equal the critical density. The expansion rate will slow down gradually, over an infinite amount of time. In such a case, the universe is considered flat and infinite in size.

➡Measurements indicate that the universe is flat, suggesting that it is also infinite in size. The speed of lightlimits us to viewing the volume of the universe visible since the Big Bang; because the universe is approximately 13.8 billion years old, scientists can only see 13.8 billion light-years from Earth. [Infographic: The History & Structure of the Universe]

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Answered by AdityanSanthakumar
1
https://en.wikipedia.org/wiki/Shape_of_the_universe?wprov=sfla1

the question you asked is a very high level Quantum Mechanics and the perfect explanation is given in Wikipedia. I really don't have the knowledge of the subject. hope you understand .
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