Propagation Multiplication
Mediumphysics
For product Q = A B, relative error approximates:
Select the correct option:
Solution
Incorrect! Answer:
(ΔA/A) + (ΔB/B)
In multiplication or division, the relative (fractional) errors add up.
- If Q=A×B
- QΔQ=AΔA+BΔB
- For the power rule X=An, the relative error is XΔX=nAΔA.
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About This Question
- Subject
- physics
- Chapter
- experimental skills and error analysis
- Topic
- propagation multiplication
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
(ΔA/A) + (ΔB/B)
In multiplication or division, the relative (fractional) errors add up.
- If Q=A×B
- QΔQ=AΔA+BΔB
- For the power rule X=An, the relative error is XΔX=nAΔA.
This medium difficulty physics question is from the chapter experimental skills and error analysis, covering the topic of propagation multiplication. It appeared in the 2025 exam.
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