0
Black holes are objects of such intense gravity that even light cannot escape, since the escape velocity at the event horizon is the speed of light. It would be better however to say that in order for the event horizon to exist, the object has to be dense enough that it's smaller than the Schwarzschild radius for that mass. This may seem counter-intuitive but it's possible for a great mass of lower density to allow light to escape for this reason - or, a much lighter object of higher density to not allow it to escape because the mass is inside this radius - hence it's possible to have a low-mass microscopic black hole.
What else can I help you with?
Does a giant star have an event horizon?
No. An event horizon is an area where even light cant escape so only black holes have it
What did the black hole swallow?
Black holes can swallow anything that comes within their gravitational pull, including light and other celestial objects like stars and planets. Once an object crosses the event horizon of a black hole, it is consumed and cannot escape.
What makes up black holes?
Black Holes are often made during the end of a star,often during a supernova.When they 'die' the star collapses into a single point which is so dense that even light cant escape.Black holes are made up two parts, the singularity and the event horizon. The singularity is the black part, the vacuum. The event horizon is the sphere that covers the singularity, then it acts as a boundary for the black hole.
Could black holes actually not be holes and just be matter like a star or planet but so dense even light cant escape their gravity?
so they are not a hole in space and time ? and then why there are some theorys like that black holes are birth place of new universe ? or you can travel across the universe by them ?
Picture of a real black hloe?
since light cant escape, a black hole picture is impossible
Why cant opaque objects allow light to pass through?
Opaque objects have a dense molecular structure that does not allow light to pass through. The particles in the object absorb and reflect light, preventing it from transmitting through the material. This is in contrast to transparent or translucent objects, which have a molecular structure that allows light to pass through easily.
Can you weigh light?
I would say that we can't weight light because whether heavy or light. if we weight any substance,if we pass light on that object the mass of that object will be constant so we cant measure light
Does a small object always have less mass than a larger object?
Not necessarily. The size of an object is not directly proportional to its mass. For example, a small object made of dense material could have more mass than a larger object made of less dense material.
Why does a shadow not form behind an opaque object?
because light passes through, and you cant have a shadow with light on now can you?
What object blocks all light and creates shadows?
any object if its far away or close it depends. But it defiantly cant be transparent
Are black holes that small that you even cant see them?
you can never directly see them no matter what size they are - because no light can escape from them. they emit and reflect no light so how can you see them? the "black hole" that you see on tv programs is not a physical object or boundary. it's called the event horizon, and it's just empty space. it's the radius around the singularity (the name for the actual object at the centre of the black hole) inside which the speed of light is too slow for the light to escape. in physics terminology, for this radius or less, the escape velocity of the singularity exceeds the speed of light. the singularity itself is hidden at the centre of the event horizon, which forms a 3-D spherical shroud around it and prevents it from ever being seen or studied.
Is it possible to escape from a black hole?
Their is no possible way you could escape a black hole. If light cant escape it, what else is possibly faster and lighter?if i may disagree the subatomic particle called a "neutrino" is faster than light and therefore could be able to surpass the speed of light and escape the gravity of a black hole.please correct me if I'm wrong my reason is based on theory
How do you escape the phonebooth?
you cant
Does a giant star have an event horizon?
No. An event horizon is an area where even light cant escape so only black holes have it
How can you escape on simons escape for trollz?
you cant that game is a waist of time
Why and how do shadows change?
Shadows change due to the movement of the light source or the object blocking the light. As the position of either the object or the light source shifts, the size, shape, and direction of the shadow will also change. This change occurs because shadows are created when an object blocks light, so any alterations in the light source or object will impact the resulting shadow.
Why cant you use visible light to see molecules?
because light used to see an object must have a wavelength
