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QuestionS3:The magnetic moment associated with first orbit in hydrogen atom is
0
me
आह
Te
eh
प
elm
bm
Correct Answer:- Option-C
‘The 1,5 and J quantum numbers corresponding to the ground state electonic configuration of Boron (

1 2
Correct Answer:- Option-B
Question55:Which one of the following molecules does not exhbit a rotational spectrum
Ari
co
೦:೫೦॥
D:-HBr
Correct Answer:- Option-A
(Question56:A hexagonal structure has a symmetry element
‘A-One 6-fold rotation axis,
B:-Two 3-fold rotation axis
CeThree 2fold rotation axis
D:-A 4-fold rotation- inversion axis,
Correct Answer:- Option-A
‘Question 7-Packing fraction for a simple cubic lattice as comapred to that of fec lattice is
Avgreater
Be-smaller
೦:೦೫ be greater or smaller
D:-not possible to say
Correct Answer:- Option-B
ಮ irradiated with visible light, which of the following types of solids are always opaque ?
Acionic crystals,
‘covalent solids
C+metallic solids
D:-none of these
Correct Answer:- Option-C
Question59:Eistein's theory concludes that at lower temperatures the specific heat
Axdrops linearly with increase of temperature
B:-drops linearly with decrease of temperature
Crops exponentially with decrease of temperature
D:-remains constant
Correct Answer:- Option-C
Question60:-For a conventional superconductor, which of the following statement is NOT true?
‘Av-specific heat is discontinuous at transition temperature Te
"The resistivity falls sharply at Te
Crit is diamagnetic below Te
D:-It is paramagnetic below Te
Correct Answer:- Option-D

[ 64
ಮ ೌ nuclear reaction: 29°". 28°" 4 x: is

ചാടിയ
B:-Proton,
CePhoton
D:-Electron.
Correct Answer:- Option-A
Question62--Half life of a radioactive sample is 365 days. Its mean life is then
Ax50.67 days
5543.32 days
C+526.87 days
D:-None of these
Correct Answer:- Option-C

Question6 3:Shell model potential is
கண்னு = -Vo ifrR
Bevin) =

2

०५७ ००१०४

നട

ಯ ‏اعقاو‎
‎0650006 1-808 5/08/2205 855807 08 a nucleus with atomic number Z and mass number A,

ക്ക
a

Correct Answer:- Option-D

Question6 5:Which of the following is true?
‘A: Quarks do not have colour
B:-Photons have colour

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