1. The problem statement, all variables and given/known data In a Young’s double-sit experiment performed with electrons, the two slits are separated by a distance of 2.0 x 10^-6m. The first-order bright fringes are located on the observation screen at an angle of 1.6 x 10^-4 degrees. Find the wavelength and momentum of the electrons. 2. Relevant equations lamda = dsinx/n ? 3. The attempt at a solution So i think electrons display the same properties as light when fired through the doublie slit thingy, thus I just subed 2E-6m for d and 1.6E-4 degree for x and used lamda = dsinx Answers not right though...and I really don't know where to continue from here.