Check out our CAT Question of the Day. Watch this space for the solution tomorrow. Answer the question based on the passage given below. The no-hair theorem states that, once it achieves a stable condition after formation, a black hole has only three independent physical properties: mass, charge, and angular momentum. For example, a charged black hole repels other like charges just like any other charged object. Similarly, the total mass inside a sphere containing a black hole can be found by using the gravitational analog of Gausss law, the ADM mass, far away from the black hole. Which of the following statements would logically conclude the passage? OPTIONS 1) Any two black holes that share the same values for these properties, or parameters, are indistinguishable according to classical (i.e. non-quantum) mechanics. 2)These properties are special because they are visible from outside a black hole. 3) Likewise, the angular momentum can be measured from far away using frame dragging by the gravitomagnetic field. 4) None of the above.
Posted on: Wed, 22 Jan 2014 05:48:33 +0000
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