very massive black holes with masses of Billions of solar massesare primarily formed how?
| A. | They have formed from a collapse of a giant gas cloud |
| B. | They are primarily formed through accretion of matter |
| C. | The are primarily formed through merging of smaller blackholes. |
| D. | They have been formed during the Big Bang |
What properties of a Black Hole can you determinetheoretically
| 1. | Mass, magnetic field, and spin |
| 2. | Mass, Spin, and electric charge |
| 3. | Mass, chemical composition, Spin |
| 4. | Spin, magnetic field, and chemical composition. |
What can you say about Hawking radiation?
| 1. | Hawking radiation can only be seen from super-massive Blackholes |
| 2. | The more massive the black hole the later the luminosity throughHawking radiation |
| 3. | The smaller the mass of the black hole the more luminous is theHawking radiation |
| 4. | You can see Hawking radiation only n the infrared |
What is the engine in an AGN
| 1. | Splitting of Uranium atoms |
| 2. | Nuclear fusion of Carbon |
| 3. | An Accretion Disk around a central Black Hole |
| 4. | Hawking radiation |
