Question

what is theory of relativity?

Answer 1

hi friends

here is your answer looking for

the theory of relativity was one of the most evolutionary theory that was given by the Albert Einstein .

the theory is divided into two types :-

1) special theory of relativity

2) general theory of relativity

GENERAL THEORY OF RELATIVITY:-
the general theory of relativity explained all about the secrets and the mechanism of gravity .
the great scientist Albert Einstein said that the the gravity is because of the space time curvature's behavior .

when the Newton had given his universal law of gravitation , Isn't that the gravity is the attractive force between the two bodies which have mass .

he said that the gravitational force between the two body is directly proportional to product of their masses and inversely proportional to the square of the distance between them .

but newton was failed to explain how the gravity works .
later the great scientist Albert Einstein explains the mechanism of the gravity.
he said that the gravity can be in the existence not because of only mass but because of the energy .
as the energy increases in any part of the space then the gravity also increases .

whether there is the kinetic energy of the potential energy.

so as the energy in increases in the space then, space time starts to distort .
and this distortion only causes Gravity .

the Newton was also not able to explain ,why the orbit of Mercury shifts after each revolution.

but by the general theory of relativity it can be explained easily .

so "what is the space time?"

SPACE TIME -
space time is the fuse model of three-dimensional space and fourth dimension time .

SPECIAL THEORY OF RELATIVITY: -

Special Relativity the Albert Einstein discussed about the relativistic nature of a mass , time and space.

according to this theory , nothing can travel with the speed of a light .

and if any object approaches the speed that is about the light then , for it the time start slowing down and the mass will also increase .

so this concept only give the most interesting idea of time travel .



hope u r satisfied with my answeras the object approaches the speed that is near about the light then basically two things happened :-

1) time dilation :- the slowing down of the time due to the higher energy in the space is called the time dilation .

2) length contraction :- length contraction is a phenomenon of contacting the length as there is high energy density region in the space or if the object travel with the speed that is near about the light .

Answer 2

★ THEORY OF RELATIVITY ★

This theory was given by one of the greatest brains - Albert Einstein.
And this really changed our mind how the science actually works. That's why it was one of the great and most evolutionary theory.

It solves the mystery of gravity as well as the basic relativistic nature of mass, time and space.

Before this theory, the Newton's law of gravitation was most appreciable to explain the one of the weakest fundamental force of our universe.

NEWTON'S THINKING BEHIND THE GRAVITY

According to him , the gravity is the attractive force between the two bodies that has mass.
He said gravitational force is directly proportional to the product of their mass and square of the distance between the two bodies.

is equation to the Gravity was given by the following equation:-

F = GMm/r^2

but Newton was failed to explain the mechanism of gravity or how the gravity works .

So, now after 200 years the great mind Albert Einstein given his general theory of relativity that can explain the mechanism of gravity.

GENERAL THEORY OF RELATIVITY

According to Albert Einstein, the gravity is the behaviour of the spacetime curvature or due to the distortion in the space time.
As the space time get distorted due to the higher energy density then, we can experience the GRAVITY.

SPACE TIME -
SPACE TIME is fuse model of three-dimensions ( x-axis ,y-axis and z-axis) and the time as the fourth dimension. Our entire universe is interwoven into the filaments of space and time.

According to the newton, the gravity is depends on the mass of the body but the reality what was something different. The gravity is due to the higher energy density in the space. So, gravity depends on the energy density in the unit of space.

Hence, as the energy in a unit of space increases then the gravity also increases proportionally to get due to the distortion in the space time. Don't matter whether it is a kinetic energy of the potential energy.

SPECIAL THEORY OF RELATIVITY

The special theory of relativity states that, as any object approaches near the speed of light then the mass and the time as well as the length of the body get relative.
So, let's discuss these three things:-

1). TIME DILATION

Time dilation is the phenomena that can be seen when any object approaches to speed that is near about the light. As that object approaches that speed then the time starts dilating or it get slow down for him with respect to its surroundings.

2). LENGTH CONTRACTION

Length contraction is the phenomena that will also seen when any object approaches to speed that is near about the light. As that object approaches that speed then the length starts contracting or starts shrinking it's length.

3). INCREMENT IN MASS

According to the theory of relativity, if any object is moving with some velocity them it starts increasing its mass. And this is the only reason why no one can achieve the speed of a light or "c".
Basically, whenever it approaches that speed then the mass will get increased infinitely.

Note :- Nothing can travel faster than the speed of light. The TACHYON particle is a hypothetical particle that is faster than the speed of light.

Basically, time dilation and length contraction phenomena is because of the distortion in space time only.

As I have said earlier our Universe is interwoven into the filaments of the space and time. So, As the spacetime get distorted then, the filament of space and time get stretched and choose the phenomenon of time dilation and length contraction.

As the filament of time get stretched then it shows the phenomenon of time dilation.
And when the space get stretched then shows the phenomena of length contraction.