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A number of electrons are accelerated from rest through a potential difference V. They are then...

A number of electrons are accelerated from rest through a potential difference V. They are then incident on a double slit setup with slit spacing d=74.4nm. The m=672 order maximum for this pattern is observed at θ=14.6∘ from the normal to the slits.

1. What is the wavelength of the electrons?

2. What is the momentum of this electron?

3. Making the approximation that relativistic effects are negligible, what is potential difference, V, through which the electrons were accelerated?

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