Sarthaks Test
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You measure two quantities as A = 1.0 m ± 0.2 m, B = 2.0 m ± 0.2 m. We should report correct value for AB as:

(a) 1.4 m ± 0.4 m

(b) 1.41m ± 0.15 m

(c) 1.4m ± 0.3 m

(d) 1.4m ± 0.2 m

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(d) 1.4m ± 0.2 m

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