Question 8

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 Units and Measurements