Question

1. Using picture or pictures, explain (5) (a) h and under what condition Ax Ap h/2. Ax Ap The meaning of each symbol in the two expressions <mÔjk>, <kIOk> and meanings of the expressions. Using <m |Ö)k>, comment on how O operates and the condition of a Hermitian operator. (8) (b) (5) The scattering and the bound state problems. (c) Why can the solutions a free particle in two-dimension be written as (1/2n) e[i(kx+ kyy)], where ky and ky are continuous? Give the meanings of k and ky. How can a Fermi momentum be defined? (8) (d)

Answer 1

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