Units & Dimensions

JEE Main level, single correct, medium

38 of 149

Question 38 of 149

A person measures mass of 3 different particles as 435.42 g,226.3 g435.42 \mathrm{~g}, 226.3 \mathrm{~g} and 0.125 g. According to the rules for arithmetic operations with significant figures, the additions of the masses of 3 particles will be.

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Answer: (C) 661.8 g

m1+m2+m3=435.42+226.3+0.125\mathrm{m}_1+\mathrm{m}_2+\mathrm{m}_3=435.42+226.3+0.125
According to least significant digits m=661.8 g\mathrm{m}=661.8 \mathrm{~g}

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