In order for electrons to diffract off the surface of a crystal they must Have l

Question

In order for electrons to diffract off the surface of a crystal they must
Have low momentum Be emitted as a coherent pulse Be absorbed by the crystal surface Have a de Broglie wavelength similar to the distances between atoms In order for electrons to diffract off the surface of a crystal they must
Have low momentum Be emitted as a coherent pulse Be absorbed by the crystal surface Have a de Broglie wavelength similar to the distances between atoms
Have low momentum Be emitted as a coherent pulse Be absorbed by the crystal surface Have a de Broglie wavelength similar to the distances between atoms

Explanation / Answer

Have a de Broglie wavelength similar to the distances between atoms  

To have differection electron should have wave nature and wavelength should be of range of spacing between the atoms

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