A frustum is cut from a right circular cone. The two circular faces have radii R and 2R and their centers are at `O_(1)` and `O_(2)` respectively. Height of the frustum is `h=3R`. When a point charge Q is placed at `O_(1)`, the flux of electric field through the circular face of radius 2R is `phi_(1)` and when the charge Q is placed at `O_(2)`, the flux through the other circular face is `phi_(2)`. find the ratio `(ph_(1))/(phi_(2))`

Answer

`((sqrt(13)-3)/(sqrt(10)-3))sqrt((10)/(13))`.