1.

The density of a cube is measured by measuring mass and the length of its sides. If the maximum error in the measurement of mass and length are 3% and 2% respectively, then the maximum error in the measurement of the density of cube is :

Answer»

`7%`
`5%`
`10%`
`9%`

Solution :Here `rho` the DENSITY is `(m)/(l^(3))`
`:.(Deltarho)/(rho)xx100=(DELTAM)/(m)xx100+3(DELTAL)/(l)xx100`
`=3%+3xx2%`
`=9%`
Hence `(d)` is correct.


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