Can a Black Hole enter inside a Worm hole? If yes then what will a observer observe if it present at the another side of Worm hole?
closed as unclear what you're asking by StephenG, Mike G, Glorfindel, J. Chomel, Jan Doggen Jul 23 '18 at 18:18
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Wormholes are a theoretical solution to Einstein's equations, but, unlike black holes, they have never been observed and probably don't exist.
If they did exist, they would almost immediately close due to the presence of matter in them. To stop them from closing you would need some "exotic matter" with remarkable properties, like "negative mass". Exotic matter has never been observed, and probably doesn't exist.
Trying to push something massive, like a black hole close to a wormhole would almost certainly cause the wormhole to close. Perhaps if the wormhole were sufficiently big with enough negative mass to stabalise it it would be possible for the black hole to traverse it. The black hole would pass through the worm hole just like anything else. At the other end you would see the black hole coming through the wormhole.
But remember, fundamentally, wormholes don't exist.