Question

Explain theory of relativity.​

Answer 1

Answer:

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The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity.[1] Special relativity applies to all physical phenomena in the absence of gravity. General relativity explains the law of gravitation and its relation to other forces of nature.[2] It applies to the cosmological and astrophysical realm, including astronomy.[3]

The theory transformed theoretical physics and astronomy during the 20th century, superseding a 200-year-old theory of mechanics created primarily by Isaac Newton.[3][4][5] It introduced concepts including spacetime as a unified entity of space and time, relativity of simultaneity, kinematic and gravitational time dilation, and length contraction. In the field of physics, relativity improved the science of elementary particles and their fundamental interactions, along with ushering in the nuclear age. With relativity, cosmology and astrophysics predicted extraordinary astronomical phenomena such as neutron stars, black holes, and gravitational waves.

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Answer 2

Theory of Relativity:

• In the concept of thory of relativity there are two sub-concept theories as follows:

1. Special relativity.
2. General relativity.

• Importantly this is a major theory compressed by the greatest scientists Albert Einstein.

• This theory comes under the study of Astrophysics. because this concept is based on both Astro + Physics (Space + Physics science).

1) Special relativity:

• This topic is nothing but this relates with the physical Phenomena.

2) General relativity:

• This related to the law of gravity and gravitational forces.

• This concept totally based on physics and space that's astrophysics and cosmology.