Questions
A wire has a mass and length The maximum percentage error in the measurement of its density is 4%. The radius of the wire is , find .
detailed solution
Correct option is B
ρ=mπr2LΔρρ×100=Δmm+2Δrr+ΔLL×100 =0.01+2Δrr+0.01×100=4 (given) or 100Δrr=1 ⇒Δr=0.01rTalk to our academic expert!
Similar Questions
The density of a cube is measured by measuring its mass and length of its sides. If the maximum errors in the measurement of mass and length are 3% and 2% respectively, then the maximum error in the measurement of density is
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