Significant Figures (addition)
Mediumphysics
Compute (12.31 + 0.4 + 3.027) applying significant figure addition rule.
Select the correct option:
Solution
Incorrect! Answer:
15.7
- Addition/Subtraction Rule: The result should be rounded to the same number of decimal places as the measurement with the fewest decimal places.
- Analyze Terms:
- 12.31 has 2 decimal places.
- 0.4 has 1 decimal place.
- 3.027 has 3 decimal places.
- Raw Sum: 12.31+0.4+3.027=15.737.
- Rounding: We must round the result to 1 decimal place (the least precise term).
- Final Result: 15.737 rounds to 15.7.
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About This Question
- Subject
- physics
- Chapter
- physics and measurement
- Topic
- significant figures (addition)
- Difficulty
- Medium
- Year
- 2025
This medium difficulty physics question is from the chapter physics and measurement, covering the topic of significant figures (addition). It appeared in the 2025 exam. Practice this and similar questions to strengthen your understanding of physics and measurement concepts.
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