wow I am amazed at how well he teaches for the person learning 1st time see keep the pen away and solely listen to the one-hour lecture, don't pause the video, don't take any breaks understand while listening playback the video then give 20-30mins to write notes only Congrats you have done 2hrs work in one and a half
Sir hum logo ko yese hii video ki jarurat thi jiska duration Kam ho aur sabhi concepts build up ho jay to sir aap sabhi chapter ka video yese hii de dijiye ga ❤
21:00 sir jb sabhi electrons ko same energy ke photon mil rhe hai toh fir electron ki energy kam zyda kyu ho rhi h even kisi metal ke sbhi electrons ka work function to same hi hogaa naa
sir is telling only to explain you the topic, there's not any energy level in one photo sensative metal plate . the purpose is to tell u like this that more be the energy more be the k.e which is above the threshold energy!! okk