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Q. $5.74\, g$ of a substance occupies $1.2\, cm ^{3}$. Its density by keeping the significant figures in view is

Physical World, Units and Measurements

Solution:

The mass $5.74 \,gm$ has $3$ significant figures, whereas the volume $1.2\, cm^{3}$ has $ 2 $ significant figures. The least number of significant figures here is $2,$ hence density will be expressed in answer rounded off to two significant figures.