McqMate
| Q. |
The source of the sun's energy is the process of – |
| A. | Photoelectric emission |
| B. | Nuclear fission |
| C. | Nuclear fusion |
| D. | Thermionic emission |
| Answer» C. Nuclear fusion | |
|
Explanation: The Sun formed about 4.6 billion years ago from the gravitational collapse of a region within a large molecular cloud. Most of the matter gathered in the center, while the rest flattened into an orbiting disk that would become the Solar System. The central mass became increasingly hot and dense, eventually initiating thermonuclear fusion in its core. It is thought that almost all other stars form by this process. |
|
View all MCQs in
PhysicsNo comments yet