Recent content by Sara077

Or if the above isn't correct i tried it a different way... Ek = eV Ek = (1.60x10-19 C) (1.6V) Ek = 2.56x10-19 J ^^ Should i subtract the work function from this? Ek = 1/2mv2 2.56x10-19 J = 1/2 (9.11x10-31 kg (v)2 5.62x1011 Jkg = v2 7.5x105 m/s = v Is this one correct?? I am just confused

Homework Statement Light illuminates a metallic surface with work function of 1.20 eV. It takes 1.0 V of retarding potential to stop all of the photoelectrons from reaching the opposite plate. Find the maximum speed of the photoelectrons. Homework Equations hf = w hf = w + Ek The Attempt at...

For sure? I was thinking that lol but there are 3 parts to the question and they all use 0.020.

Homework Statement Hi everyone, this is probably simple but i don't understand why the acceleration in the question is 0.20 m/s2 but in the answer an acceleration of 0.020 m/s2 is used? Can someone please explain why it changes? Thank you! Homework EquationsThe Attempt at a Solution