Thank you for reporting, we will resolve it shortly
Q.
If initially flux through hemisphere is zero. Now $q_{1}$ and $q_{2}$ placed according to figure. Due to which charge flux through hemisphere will change :-
Solution:
Field lines of $q _{1}$ passes through surface of hemisphere one time.
Field lines of $q _{2}$ passes through surface of hemisphere two time so net flux due to $q _{2}$ is zero.
Net flux due to $q _{1}$ is non zero.
