A cooling object was emitting radiations of time varying

Last updated: 6/10/2023

A cooling object was emitting radiations of time varying wavelength 3000 40t where 2 is in and t is in second is incident on a metal sheet of work function 2eV such that the power incident on sheet is constant at 100 watt This signal is switched on and off for time intervals of 2 minutes and 1 minute respectively Each time the signal is switched on again starts from fresh value of 3000 If the meta plate is grounded so that it always remains neutral and electron clouding is negligible then find the maximum photocurrent mA The photoemission efficiency is 0 01 and remains constant Take hc 12400eV