Consider x ray diffraction from a crystal with an fcc(face centered cubic) lattice.
The lattice plane for which there is NO diffraction peak is -
1. (2,1,2)
2. (1,1,1)
3. (2,0,0)
4. (3,1,1)
I think Bragg's law must be used. nλ=2d sinλθ.
A particle is confined within a spherical radius of one femtometer(10^-15 m)?
Its momentum can be expected to be about-
1. 20 keV/c
2. 200 keV/c
3. 200 MeV/c
4. 2 GeV/c
How should I go about using HUP on a problem like this one? I tried substituting x=10^-15 meters in px=h/4 pi but the answer...