1.

You measure two quantities as\[A=1.0m\pm 0.2m\]\[B=2.0m\pm 0.2m\]. We should report correct value for \[\sqrt{AB}\] as

A. \[1.4m\pm 0.4m\]
B. \[1.41m\pm 0.15m\]
C. \[1.4m\pm 0.3m\]
D. \[1.4m\pm 0.2m\]
Answer» E.


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