Note:
If your answer is options 2,4 Then you have to fill the OMR sheet as ‘24’
If your answer is options 1,3,4 Then you have to fill the OMR sheet as ‘134’

 

 

Charges $Q_{1}and{Q}_2$ lie inside and outside respectively of a closed Gaussian surface S. Let E be the field at any point on $Sand\varphi$ be the flux of E over S:

1) If $Q_1$ changes, both $Eand\varphi$ will change
2)  If $Q_2$ changes E will change
3)  If $Q_1=0and{Q}_2\ne 0$ then $E\ne 0but\varphi =0$
4)  If $Q_1\ne 0and{Q}_2=0$ then $E=0but\varphi \ne 0$