0:1८ (87
Correct Answer:- Option-D
Question47:-The isothermal compressibility of an ideal gas at temperature T and volume V is given by
:-K=-V" ((delP}/(delV)}_(T}"
V" ({delP)(delv))_(T)
யாவை ह)
யர (கோ) {7} `
Correct Answer:- Option-D
Question48:-What is the temperature of an ideal gas of He atoms, if there 81௧ 6306 *10°(22)" atoms occupying 2 litres at
atmospheric pressure?
A:-341K
B:-241K
C:-300K
D:-273K
Correct Answer:- Option-B
Question49:-Consider a photon gas enclosed in a volume V and in equilibrium at temperature T. What is the chemical
potential of this gas?
&:- (3/2) kT
8: (3)/2) ` ` (ल)
C:-0
0:- (1/2) ` चल
Correct Answer:- Option-C
Question50:-A white dwarf star is supported against gravity by
A:-Electron degeneracy pressure
B:-Radiation pressure
C:-Thermal pressure
D:-Neutron degeneracy pressure
Correct Answer:- Option-A
Question51:-Anomalous Zesman effect is exhibited by atoms having
A:-zero spin angular momentum
B:-non-zero spin angular momentum
C:-non -zero orbital angular momentum
D:-none of these
Correct Answer:- Option-B
Question52:-The lande g factor for the 3D1 level of an atom is
‏2ھ‎
‎B:-3/2
‎6:32
‎00
‎Correct Answer:- Option-A
Question53:-The ratio of intensity of D1 and D2 line of sodium atom 5
കഃ

Correct Answer:- Option-B
Question54:-ldentify the molecule whose vibrations are both Raman and IR active
#:- 00 (2)
8:-05 (2)
ப 0200
00 (2)
Correct Answer:- Option-C
Question55:-The term *(j_{1),j_(2))" arising from 251,2p1 electronic configuration in jj coupling scheme is
(12.32) {2.1}: `` ` (1/2.1/2) (1.2).
(1/2.3/2) 2.1}: `` ` (1/2.1/2) (1,0}`
31/2.5/2) (4.3) ` ` (1/2,3/2) (2.1)
(1202) 20 ` ` ` (32.1/2} (1.0)
Correct Answer:- Option-B
Question56:-Metallic sodium has a BCC structure. Which of the following lines will be absent in the diffraction pattem