A small sphere carrying a charge `q` is hanging in between two parallel plates by a string of length `L`. Time period of pendulum is `T_(0)`. When parallel plates are charged, the time period changes to `T`. The ratio `T//T_(0)` is equal to

Options

A. `((g+(qE)/(m))/(g))^(1//2)`
B. `((g)/(g+(qE)/(m)))^(3//5)`
C. `((g)/(g+(qE)/(m)))^(1//2)`
D. `((g)/(g+(qE)/(m)))^(5//2)`