Physics (AS & A Level) · Oct / Nov 2024 · Paper 11 · Question 3
The density of the material of a rectangular block is determined by measuring the mass and linear dimensions of the block. The list shows the results obtained, together with their uncertainties. mass = (25.0 ± 0.1) g length = (5.00 ± 0.01) cm width = (2.00 ± 0.01) cm height = (1.00 ± 0.01) cm The density is calculated to be 2.50 g cm⁻³. What is the uncertainty in this result?
- A± 0.01 g cm⁻³
- B± 0.02 g cm⁻³
- C± 0.05 g cm⁻³
- D± 0.13 g cm⁻³
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Correct answer: C. ± 0.05 g cm⁻³
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