McqMate
| Q. |
A radioactive substance emits? |
| A. | alpha particle |
| B. | beta particle |
| C. | gamma particle |
| D. | all of the three |
| Answer» D. all of the three | |
|
Explanation: Radioactive substances are continually producing three kinds of dangerous radiation: alpha particles, beta particles and gamma rays. These types of radiation are invisible to the naked eye, and so you won't see a green glow. |
|
View all MCQs in
PhysicsNo comments yet