a charge of 1 C what is located at the centre of a sphere of radius 10 centimetres and square of side 20 centimetre. The ratio of outgoing flux from the shpere and cube will be

1) more than one

2) less than 1

3) one

4)nothing certain can be said

As the charge 1 C is enclosed by the sphere, so from Gauss law the total electric flux passing through the sphere,
${\varphi }_1=\frac{q}{{\in }_0}=\frac{1}{{\in }_0}$
As this 1 C charge is enclosed by the cube also, so from Gauss law the total electric flux passing through the cube,
${\varphi }_2=\frac{q}{{\in }_0}=\frac{1}{{\in }_0}$
Therefore, the ratio of the outgoing flux from the sphere and the cube,
$\frac{{\varphi }_1}{{\varphi }_2}=\frac{\frac{1}{{\in }_0}}{\frac{1}{{\in }_0}}=1$