Chapter 20-Nuclear Structure - Solved Numericals -Class 10 Physics- скачать в хорошем качестве

Chapter 20-Nuclear Structure - Solved Numericals -Class 10 Physics-

1. A living plant contains approximately the same isotopic abundance of C-14 as does atmospheric carbon dioxide. The observed rate of decay of C-14 from a living plant is 15.3 disintegrations per minute per gram of carbon. How much disintegration per minute per gram of carbon will be measured from a 12900-year-old sample? (The half-life of C-14 is 5730 years.) 2. The smallest C-14 activity that can be measured is about 0.20%. If C-14 is used to date an object, the object must have died within how many years? 3. How long will it take for 25% of the C-14 atoms in a sample of C-14 to decay? 4. The carbon-14 decay rate of a sample obtained from a young tree is 0.296 disintegration per second per gram of the sample. Another wood sample prepared from an object recovered at an archaeological excavation gives a decay rate of 0.109 disintegration per second per gram of the sample. What is the age of the object? ▬▬▬▬▬▬▬▬▬▬ More Solved Numericals Unit 10 General Waves Properties :    • Unit 10 General Waves Properties | Solved ...   Unit 11 Sound :    • Chapter 11 Sound | Solved Numericals for C...   Unit 12 Electromagnetic Spectrum :   • Chapter 12 Electromagnetic Spectrum | Solv...   Unit 13 Geometrical Optics :    • Chapter 13 Geometrical Optics -Solved Nume...   Unit 14 Electrostatics :    • Chapter 14 Electrostatics- Physics Solved ...   Unit 15 Current Electricity :    • Chapter 15 Current Electricity - Solved Nu...   Unit 16 Electromagnetism :    • Chapter 16 Electromagnetism- Solved Numeri...   Unit 20 Nuclear Structure :    • Chapter 20-Nuclear Structure - Solved Nume...