WBUT 2012 PHYSICS-II [PH-401] Question Paper





Time Allotted : 3 Hours                                    Full Marks : 70

The figures in the margin indicate full marks.

Candidates are required to give their answers in their own words

as far as practicable.


(Multiple Choice Type Question)

1.       Choose the correct alternatives for any ten of the following:
                                                                                               10 x 1 = 10

          i)        The dimension of μ0t0  is

                   a)       L-2 T-2                                      b)       L-2 T2

                   c)       L T-1                                          d)       L-1 T-1

          ii)       The displacement current arises due to

                   a)       positive charge only

                   b)       negative charge only

                   c)       time varying electric field

                   d)       magnetic monopole

          iii)      If the Fermi energy of metal ( in 3d ) at thermal equilibrium             is 15 eV, then the average energy of the electron is

                   a)       9 eV                                         b)       10 eV

                   c)       15 eV                                       d)       12 eV