CS/B.TECH(ECE-New/PWE-New)/SEM-4/PH-401/2012
2012
PHYSICS-II
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.
GROUP – A
(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