Two metallic plate A and B , each of area` 5 xx 10^(-4)m^(2)`, are placed parallel to each at a separation of 1 cm plate B carries a positive charge of `33.7 xx 10^(-12) C A` monocharonatic beam of light , with photoes of energy 5 eV each , starts falling on plate A at t = 0 so that` 10^(16)` photons fall on it ``per square meter per second. Assume that one photoelectron is emitted for every `10^(6)` incident photons fall on it per square meter per second. Also assume that all the emitted photoelectrons are collected by plate B and the work function of plate A remain constant at the value 2 eV Determine
(a) the number of photoelectrons emitted up to i = 10s