Question

11th science NCERT
with proper method​

Answer 1

Error in mass is 0.26%

Error in Radius is 0.38%

Volume=4/3πr^3

∆V/V×100=3×∆r/r×100

∆V/V×100=3×0.38=1.14% it is the error in volume

Density=mass/volume

∆D/D×100 is percentage error in density

= ∆m/m×100 + ∆V/V×100

=0.26%+1.14%=1.4%