Questions
The radius of a cylindrical wire is measured by screw gauge is . The length of wire is and the mass of wire is . The density of wire is
detailed solution
Correct option is A
Density, ρ= Mass Volume =mπr2l=123.14×1.25×10-12×25.0=9.8gcm-3ρ=mπr2lΔρρ=Δmm+2Δrr+ΔllΔρ=112+2×0.01125+0125.0×9.8=1.0ρ=(9.8±1.0)gcm-1Talk 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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