Akash posted an Question
October 21, 2021 • 18:14 pm 30 points
  • CSIR NET
  • Physical Sciences

Ans. * (c) q3. the hamiltonian of an electron in a constant magnetic field b is given by h = uo- b. where is a positive constant and õ = (o,.o,0,) denotes the p

Ans. * (C) Q3. The Hamiltonian of an electron in a constant magnetic field B is given by H = uo- B. where is a positive constant and õ = (o,.O,0,) denotes the Pauli matrices. Let = uB /h and I be the 2x2 unit matrix. Then the operator e'n simplifies to (a) I coS 2 ot io Bi t Sin B B -Sin ot (b) I cos at +- B -B io B (c) I sin øt +- io cOs Dt B (d) I sin 2ot+- cos 20t B

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    Anshum Sharma

    Here is the detailed solution option (b) is the correct answer

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