Which of the following statements are correct? A. Number of photoelectrons emitted per second is directly proportional to the intensity of incident radiation B. Cut off potential is the minimum negative potential given to the plate for which photocurrent becomes maximum C. For a given frequency of the incident radiation, the stopping potential is independent of its intensity D. Even for the exceedingly dim incident radiation apparent time lag is~ 109s or less E. Photons are electrically neutral and are not deflected by electric and magnetic fields Choose the correct answer from the options given below: