Question

What is the difference between black hole and worm hole ?

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Answer 1

Heyaaa buddy

Here is your answer:-
Before this let me tell you that everything in black hole and worm hole is based on the simple theory of relativity.

$\boxed{E = mc^2}$

$\huge\bold{ Worm \:Hole}$

Wormhole is a hole which is present in each and every place of the world . We all know that whether the thing is plain or rough it have many minute irregularities. Same like that even time has many hole present between them. These are called wormhole . By the worm hole we can travel in time and dimensions.B y these we can even go to different parts of space and even parallel universe. But these are not possible in present. For that we should develop our science as it is too small to go through.

$\underline\bold{Worm\:hole\:can\:take\:us\:only\:to\:past}$ because these irregularities are caused due to 4th dimension which relate the time also . But only past because future can't be related as we haven't been to it yet

$\Huge\bold{Black\:hole}$

A black hole is a place in space which have a very great gravitational force that even light cannot pass through it. Not even any matter or radiation. According to many famous scientist like Albert Einstein, Stephan hawking says that black hole can be a way for us to travel in future . But it requires a lot of energy for a normal human machine to do that. To do that we need a space shuttle which can just revolve around it for few days or month . According to Einstein theory which is $\bold{Theory\:of\:relativity }$ when any object goes close to light or to any heavy suction pull for that region the time goes very slow . So black hole can be a way for us to travel in future.

Difference:-

$<u>$

I)A worm hole can be a way to travel in past whereas black hole can be a way to travel in future.

ii) If any matter goes inside a worm hole it can come back but if the sme matter goes inside a black hole it can't come back ever.

iii) Black hole is a fixed place in the space but wormhole are not settled they always use to destroy themselves due to their energy.

iv) Matter and light can escape through wormhole but they cannot escape through black hole.

Answer 2

$\bf{BLACK \: \: }HOLES$

What are black holes?

=>  It is also a celestial body which have infinite gravitational force and infinite mass and even light can not escape from it.

How black holes formed?

=> Mostly  black holes formed because of compression of mass and density of stars.

So,  first we know how stars formed and then black holes.

= stars are formed by the cloud of  gas and dust present in our universe which we simply called as Nebula.

= They are mostly composed of hydrogen and helium with some amount of another elements.

= when the density of nebula decreases then they contract because of their  gravitational force and then its temperature rises at very high level and in that temperature hydrogen atom makes helium by fusion reaction and because of the speed of hydrogen atom and also heat the nebula takes a spherical shape which we call star.

Now black hole formation -

= The gravitational force of stats are balanced by their heat.

And hydrogen acts as a fuel for it.

= and when its hydrogen  finishes then with passage of  time that star cools down and then its mass and density  becomes 4 times greater then its original mass and density.

And then that star can't control its gravitational force and then a blast occurs which we call supernova.

And after this blast if any of the piece of that star which have more mass remains then it becomes a star which have mass and density of a critical level and we call this as  Neutron star.

In this type of Neutron star because of its gravitational force then it starts contracting  and after contracting it at a critical level then it becomes a body which have infinite density and mass and because of this infinte density and mass the space time bents inward there and then it doesn't be there and we call this as a black hole.

Its whole mass is focused at center which we call it

✳ central singularity point 

And the boundary of black hole is called

✳ event horizon

And nothing can escape from here even light can't.

And here concept of time doesn't work.

=>  According to theory of relativity if the object is near the black hole then the time slows down for it.

Types of black holes

1. Stellar mass black hole

~> It is the type of black hole formed because of contraction of a star which have mass about 3 times greater than the sun.

2. Super massive black holes

~> It is formed in center of any galaxy and have infinite mass and gravitational force and it has mass about 100000000 times that of sun.

3. Permordial or small black holes

~> They are formed because of the more heat at the center of a star and the mass of that star is less than that of our sun.

Physicist  think that  they formed with the beginning of universe

$\bf{WORM \: \: }HOLE$

Now, we will discuss about what is wormhole.

actually there are 10 dimensions in our universe but we can see upto 3dimensions only.

lets take an example

suppose you are moving in. a car

if you are travelling straight then thats 1st dimension.

if you move left and right too thats 2nd dimension

if there is a mountain and you go through mountain then Thats 3rd dimension.

means.

0D means a point

1D means having length

2D means having length and breadth too

and.

3D means having length, breadth and height.

but there is also type of length which we can't see thats the length of time.

thats called four dimensional space time.

now come to the topic.

as we know nothing is totally smooth in this universe means all the things are rough means there will be hole in everything.

and we know time is also a physical quantity .

means time have also some holes

that holes called wormhole.

Actually they destroy themselves because of their heat and energy

and if any object travel through wormhole they can go in past.

but they are too small even then quark and bosons.

and if any one will do time travel to past then there will be the situation called

(virodhawas)

means

suppose you travelled in past and

you killed yourself.

but you died in past so how can you be in present.

and who killed you because you died in past.

thats called (virodhawas) actually this is a hindi word.