Question

the surface charge density of a very large surface is -3×10-6C/m2 from what distance should an electron of 150eV energy be projected towards the plane sobthat its velocity becomes zero on reaching the plane? charge of an electron is 1.6×10-19C​

Answer 1

$\color{pink}\mathfrak{ very}$

$\mathbb{ HARD}$

$\huge\color{red}\mathfrak{question }$