What accelerating potential is needed to product as electron beat with on effecive wavelength of `0.090 Å`

What accelerating potential is needed to produce an electron beam with an effective wavelength of 0.090Å-

Though what potential difference must an electron pass to have a wavelength of 500Å.

Dtermine the accelerating potential necessary to given an electron a de Broglie wavelength of 1 7Å , which is the size of the interatomic spacing of atoms in a crystal

Dtermine the accelerating potential necessary to given an electron a de Broglie wavelength of 1 7Å , which is the size of the interatomic spacing of atoms in a crystal

How much potential is to be applied to accelerate an electron, so that its de-broglie wavelength should 0.4 Å ?

Through what potential difference should an electron be accelerated so that its de-Broglie wavelength becomes 0.4Å?

The potential difference V required for accelerating an electron to have the de-Broglie wavelength of 1 Å is