Multiple choice general knowledge science & technology

What is White-Hole

  1. Is just with opposite characteristics of a black-hole.In astrophysics, a white hole is the hypothetical time reversal of a black hole. While a black hole acts as an attractor, drawing in any matter that crosses the event horizon, a white hole acts as a so

  2. any white colored hole

  3. while whole!!!!!!!!....what a nonsensee

  4. must be some thing...

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A white hole is a hypothetical region of spacetime that cannot be entered from the outside, though matter and energy can escape from it - essentially the theoretical time-reversal of a black hole. While white holes exist in general relativity mathematics, they have never been observed and remain theoretical constructs. Options B, C, and D are clearly incorrect or nonsensical responses.