Physics (AS & A Level) · Oct / Nov 2016 · Paper 23 · Question 1
9702
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1(a)[1]
(density =) mass / volume [1]
1(b)(i)[1]
d = [(6 × 7.5) / (π × 8100)]1/3 = 0.12(1) m [1]
1(b)(ii)[3]
percentage uncertainty = (4 + 5) / 3 (= 3%) or fractional uncertainty = (0.04 + 0.05) / 3 (= 0.03) absolute uncertainty (= 0.03 × 0.121) = 0.0036 d = 0.121 ± 0.004 m [3]
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