Powerful force allows black holes to absorb light is Gravity.It is the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
What is gravity?
The force that attracts a body toward the center of the earth, or toward any other physical body having mass.
What you are really asking is, “What powerful force allows black holes to prevent light from escaping?” The answer is “gravity”. That’s it. And, it’s not “super gravity”. There is no such thing as “super gravity”.
It’s just plain old run-of-the-mill gravity. The exact same gravity that holds you onto planet Earth.There are two properties of gravity that allow Black Holes to prevent light from escaping. The first is that all objects which have mass, also have gravity; and, the more mass an object has, then the more gravity it has.
The second property is one you also know, but just don’t think of it in relation to Black Holes: the closer you get to the center of mass of an object, the stronger is the pull of that object’s gravity.Remember what is at the center of a Black Hole? A singularity. A singularity is an object with mass, but with no dimensions - which means no size.
That means that all of the mass of the original star is contained in a point in space which has no size. And, that means you can get extremely close to the center of mass of the singularity. So close, in fact, that the gravitational pull of the original star’s mass becomes strong enough to prevent light from escaping.
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