level: Half-Life
Questions and Answers List
level questions: Half-Life
| Question | Answer |
|---|---|
| What is the Activity of an Nuclei? | -This is simply the Number of Unstable Nuclei that can Decay in a Set Amount of Time |
| What is Geiger Muller Tube do? | -This simply Detects the Radiation that is Emitting |
| What does the Half Life mean? | -This is the Average Time that is Taken for the Activity, or Count Rate, to Halve -Can also be seen as Half of the Nuclei to Decay |
| What does a: -Short Half Life mean? -Long Half Life mean? | -Short Half Life simply means the Activity Falls Quickly, as the Nuclei decays Quickly -Long Half Life simply means the Activity takes a While to fall, as the Nuclei stays Longer |
| So if a Nuclei has an Activity of 1000 Bq, and has a Half Life of 5 Years, how long would it take for the Activity to drop to 250 Bq? | -After 1 Half life, the Activity would become 500 Bq -After 2 Half Life, the Activity would become 250 Bq -So it takes 10 Years to drop to its Quarter |