Recent content by pyxolo

lol, I didn't notice, \[ 1eV = 1.602\cdot10^{ - 19} J \]

Hi there. I am a student from Spain and I am about to join the University but I have to pass physics at High School. Here It is: The work of extracting an Eletron in a metal is 3.8 eV. Calculate the minimum frequency needed to start the electron. This is what I did. \[E = \phi + Ec\]...