1.

A certain body weighs `22.42 g` and has a measured volumen of `4.7 c c`. The possible error in the measurement of mass and volumen are `0.01g` and `0.1 c c`. Then, maximum error in the density will beA. `22%`B. `2%`C. `0.2%`D. `0.02%`

Answer» Correct Answer - B
Density `= ("Mass")/("Volume")`
`rho = (m)/(V)`
`:. (Deltarho)/(rho) = (Deltam)/(m) + (DeltaV)/(V)`
Here, `Deltam = 0.01m, 22.42`
`DeltaV = 0.1V, 4.7`
`:. (Deltarho)/(rho) = ((0.01)/(22.42)+(0.1)/(4.7)) xx 100 = 2%`


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