At t=0, light of intensity \[{{10}^{12}}\]\[{{10}^{12}}photons/s-{{m}^{2}}\]of energy 6eV per photon start falling on a plate with work function 2.5eV. If area of the plate is \[2\times {{10}^{-4}}{{m}^{2}}\]and for every \[{{10}^{5}}\]photos one photoelectron is emitted, charge on the plate at \[t=25s\] is

• A. \[8\times {{10}^{-15}}C\]
• B. \[4\times {{10}^{-14}}C\]
• C. \[12\times {{10}^{-14}}C\]
• D. \[16\times {{10}^{-14}}C\]