Doublie slit w/ electron problem

[overside]

Homework Statement

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.

Homework Equations

lamda = dsinx/n ?

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.

 

[overside]

come on someone help me please D:

 

[ehild]

What results did you get?

ehild

 

[overside]

OK nevermind, what I did was right, the teacher made type and give wrong angle, thank you anywayz

 

[Redbelly98]

Glad it worked out.

FYI, in the future I recommend posting any final result you calculate. Otherwise people have no way of knowing if you did it correctly all the way through to the end.