MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The nebula formed when a dying sun sized star begins to shed its outer layer is called as ____________ |
| A. | Blue Nebula |
| B. | Crab Nebula |
| C. | Emission Nebula |
| D. | Planetary Nebula |
| Answer» E. | |
| 2. |
A young star of several solar masses is called as ____________ |
| A. | LBV1806-20 |
| B. | Mira |
| C. | Cepheid |
| D. | Sirius A |
| Answer» D. Sirius A | |
| 3. |
Neutron stars have a mass of ___________ |
| A. | 1.4 solar mass |
| B. | 14 solar masses |
| C. | 20 solar masses |
| D. | 30 solar masses |
| Answer» B. 14 solar masses | |
| 4. |
According to Stephen Hawking, owing to which process, can the particles escape the field of black hole? |
| A. | Pair production |
| B. | Pair annihilation |
| C. | Compton effect |
| D. | Photoelectric effect |
| Answer» B. Pair annihilation | |
| 5. |
The closest distance the light can go near the black hole and return back is called the ___________ |
| A. | Gravitational distance |
| B. | Black hole point |
| C. | Event Horizon |
| D. | Ultimate distance |
| Answer» D. Ultimate distance | |
| 6. |
Which mathematical quantity is imagined to be present at the center of a black hole? |
| A. | Unity |
| B. | Singularity |
| C. | Infinity |
| D. | None |
| Answer» C. Infinity | |
| 7. |
If a star is about 10 times the earth s sun, how will it change when it s about to die? |
| A. | Explode |
| B. | Contract |
| C. | Turn into a red giant |
| D. | Turn into a blue giant |
| Answer» E. | |
| 8. |
In every nebula, a star is beginning to form. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
In massive stars, when the core has fused carbon into every possible matter, the iron core shrinks from about the size of the earth to 10 Km radius sphere in less than a second. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Black holes are ___________ |
| A. | Dead stars |
| B. | Old Supernovas |
| C. | Strong Nebulas |
| D. | Dead planets |
| Answer» B. Old Supernovas | |
| 11. |
When the core runs out of hydrogen, the helium is fused into ___________ |
| A. | Hydrogen |
| B. | He<sup>2+</sup> ions |
| C. | Carbon |
| D. | Oxygen |
| Answer» D. Oxygen | |
| 12. |
When the hydrogen fuel ends up in a star, it ___________ |
| A. | Contracts |
| B. | Expands |
| C. | Explodes |
| D. | Stops shining |
| Answer» B. Expands | |
| 13. |
When the earth s sun would die, it would change into a ____________ |
| A. | Supernova |
| B. | Nebula |
| C. | White dwarf |
| D. | Red giant |
| Answer» E. | |