Black holes full explaination in urdu/Hindi | بلیک ہولز کیا ہیں اور یہ کیسے بنتے ہیں؟ | Infopoint

In this video I’m going to talk about black holes. In this video black holes are fully explained in Urdu/Hindi. A black hole is a region of space-time exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside it. The theory of general relativity predicts that a sufficiently compact mass can deform space-time to form a black hole. The boundary of the region from which no escape is possible is called the event horizon. Although the event horizon has an enormous effect on the fate and circumstances of an object crossing it, no locally detectable features appear to be observed. In many ways a black hole acts like an ideal black body, as it reflects no light. Moreover, quantum field theory in curved space-time predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe. I’m Social: Twitter: https://twitter.com/InfoPoint_IP Instagram: https://www.instagram.com/umairsaddiquee Instagram: https://www.instagram.com/infopointof... facebook: https://www.facebook.com/infopointoff... Thanks for watching