30.

31.

32.

33,

34,

35,

36,

The Fermi Golden rule of time = perturbation gives the transition per unit time
ण:

(ക) Perturbed Hamiltonian from one slationary state to another

(8) Perturbed Hamiltonian from one stationary state to a group of states
(9) Perturbed Hamiltonian from a group of states to another group of states
(D) None of these

If the magnetic field vector 1 has only Z component given by H,=3xcosp +6ysiny and

جد
‎if the field is invariant with time, the expression for current density ] will be :‏
دہ ‎J=6ksiny (8) J=—6ksiny (C) 1= —6kcosy (D) ரஸ‏ )^(

Which of the following equations represents the relation between the magnetising volume
current density ‏مي[‎ and the magnetisation polarization M ?

)۸( ‏٤٥ي[‎ (೫) 15೪. ೪೬10) (©) ], =VxM (0) ணா

- -
Poynting theorem relating the electric intensity E, magnetic intensity I and the rate of
energy flow per unit area at a point gives poynting vector P as equal to :

¬+ ¬> - ஆ

- - - ‏یہ‎
‎(A) ExH B) E-H (3 V.ExH (D) ಶಿ...

Tor propagation of electromagnetic wave in a good conductor, the value of :

(4) «=Jopo/2, p=180 (ए) வச, 890
‏ا‎ ௨௨/௮ (2) a=p=Jupo/2

When EM waves are propagated in a rectangular waveguide :

(A) they travel along the broader walls of the waveguide

(0) they travel through the di-electric without touching the walls

(C) they travel along all the four walls of the waveguide

(D) they are reflected from the walls but do not travel along the walls

During an adiabatic process at constant pressure, the temperature and volume of a gas are
found to vary according to the relation ۳۷۳۶۵ = constant, The gas should be a :

(A) monoatomic gas (8) diatomic gas
(C) triatomic gas (D) could be any of the above

126/2014 6 A