The equilibrium populations of the 1H energy levels of a molecule are nα = nαeq and nβ = nβeq. What are the populations after a 5.0 μs pulse when B1 = 4.697 mT?
(A)nα = nβeq and nβ = nαeq (B)nα = nαeq and nβ = nβeq (C)nα = ½(nαeq + nβeq) and nβ = ½(nαeq + nβeq) (D)nα = nαeq + nβeq and nβ = nαeq + nβeq
A