The error in measuring the side of a cube is `+- 1%`. The error in the calculation of the volume of the cube will be about

`((Dletarho)/(rho))_(max)` = is mostly affected by % error in diameter .

Correct option is: D. (400 - 100π) sq. m

(a). There are eight corners in a cube so, total charge for the cube is `(q)/(8)`. ltbr. Thus, electric flux at `A=(q)/(8epsi_(0))` ltb rgt (b) When the charge q is...

Density of cube `(p)=(M)/(V)=(M)/L^(3)) therefore((Deltap)/(P))_("max")xx100=((DeltaM)/(M)xx100)+3(DeltaL)/(L)xx100)=2%+3(1%)=5%`

H=PRt `(DeltaH)/(H)=(2DeltaI)/(I)+(DeltaR)/(R)+(Deltat)/(t)=2(2%)+1%+1%` =6%

Correct Answer - C `v=l^(3)` `(dv)/(dt)=3l^(2)((dl)/(dt))` `((dv)/(dt))=3(2)^(2)(10^(-4)m^(3)//sec)` `((dv)/(dt))=12xx10^(-4)m//sec`

Correct Answer - 9 cm Let the length of the shotest side of the triangle be x cm . Then length of the longest side = 3 x cm Length of...

Correct Answer - (a) `39.6muJ` (b). `2.25xx10^(-9)J`

Correct Answer - `5.4 xx 10^(-7) %`

Volume of balloon = V = 800 cm3 Density of hydrogen gas = pH = 9 x 10-5 g cm-3 Weight of empty balloon = 0.3 gf Density of air = ρa = 1.3...