If the error involved in the measurement of mass and length of one side of a cube are 4% and 3% respectively. What is the maximum permissible relative error in calculation of density of meterail of the cube?

Explanation

`Here, (Delta M)/(M) = +-4% and (DeltaL)/(L) = +- 3% (Delta rho)/(rho) = ?`
As density `rho = (mass)/(volume) = (M)/(L^3) :. (Delta rho)/(rho) = (DeltaM)/(M) +(3DeltaL)/(L) = +- 4% +3 (+-3%) = +- 13%`