A sphere of radius `r_1` encloses a change Q. If there is another concentric sphere S
2 of radius `r_2 (r_2 > r_1)` and there is no additional change between S
1 and S
2. Find the ratio of electric flux through S
1 and S
2?
r_1)` and there is no additional change between S1 and S2. Find the ratio of electric flux through S1 and S2?' width='149' height='148'>