Test #2 Question 3C
Posted: Wed Oct 31, 2018 7:55 pm
For this question, I used the kinetic energy formula to calculate the velocity of the electron and got 6.626 x 10 ^-25 m/s. And then used the wavelength = h/mv to find the wavelength of the electron. I plugged in the given and got wavelength= (6.626 x 10^-34 Js) /((9.1095x 10 ^31 kg) (6.626 x 10 ^-25 m/s) ). This gave me the wavelength of the ejected electron to be 1.09 x 10 ^24 m . Is this the correct way to do it? If not, can someone please explain how to do this problem.