MYP Physics · 17 · data analysis
Background counts matter
Atomic and nuclear physics · Original GioPhysics question with a detailed, mark-by-mark answer guide.
- Demand
- demanding
- Marks
- 5
- Topics
- 1
- Answer
- Complete
Question5 marks
A detector records 460 counts in 2.0 min near a source and 70 counts in 5.0 min with the source removed. Find the source's corrected count rate.
Task interpretation
What a complete response should do
Identify the useful evidence, process it with units, and make only the conclusion the data supports.
Split the problem into linked stages and state why each relationship applies.
- Response type
- data analysis
- Allocation
- 5 marks
- Demand
- demanding
Ready to check?Reveal answer and worked solution
Private on this device
How did this one feel?
Use your answer and the marking steps—not confidence alone—to choose.