**Kerala PSC Higher secondary school teacher Physics solved Paper**

**Category Code: 033/2016**

**Exam: HSST Physics SR for SC/ST**

**Date of Test 03-10-2016**

51:-Anomalous Zeeman 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

Answer:- Option-B

52:-The lande g factor for the 3D1 level of an atom is

A:-1/2

B:-3/2

C:-5/2

D:-7/2

Answer:- Option-A

53:-The ratio of intensity of D1 and D2 line of sodium atom is

A:-1:2

B:-2:1

C:-3:2

D:-2:3

Answer:- Option-B

54:-Identify the molecule whose vibrations are both Raman and IR active

A:-`CO_(2)`

B:-`CS_(2)`

C:-`H_(2)O`

D:-`O_(2)`

Answer:- Option-C

55:-The term `(j_(1),j_(2))` arising from 2s1,2p1 electronic configuration in jj coupling scheme is

A:-```(1/2,3/2)_(2,1)` ```(1/2,1/2)_(1,2)`

B:-```(1/2,3/2)_(2,1)` ```(1/2,1/2)_(1,0)`

C:-```(3/2,5/2)_(4,3)` ```(1/2,3/2)_(2,1)`

D:-```(1/2,1/2)_(2,1)` ```(3/2,1/2)_(1,0)`

Answer:- Option-B

56:-Metallic sodium has a BCC structure. Which of the following lines will be absent in the diffraction patternA:-(100)

B:-(200)

C:-(110)

D:-(222)

Answer:- Option-A

57:-The reciprocal lattice to a BCC lattice is a lattice of type

A:-Simple cubic

B:-BCC

C:-FCC

D:-none of the above

Answer:- Option-C

58:-Hall co-efficient gives an indication of

A:-thermal conductivity

B:-specific heat capacity

C:-carrier concentration

D:-None of the above

Answer:- Option-C

59:-If the fermi energy of copper is 7.0 eV, what is the corresponding fermi temperature ?

A:-81.2 K

B:-812 K

C:-8120 K

D:-81200 K

Answer:- Option-D

60:- Which of the following is not true for type I super conductor

A:-Exhibit complete Meissner Effect

B:-Perfect diamagnetism below Tc

C:-Also known as soft superconductors

D:-Exhibits a vortex state

Answer:- Option-D

61:-Average Binding Energy of a nucleon in the nucleus of an atom is

A:-7.8eV

B:-7.8KeV

C:-7.8MeV

D:-7.8BeV

Answer:- Option-C

62:-Weak nuclear forces act on

A:-both hadrons and leptons

B:-hadrons only

C:-all particles

D:-all charged particles

Answer:- Option-A

63:-An admissible potential between the proton and neutron in a deutron is

A:-coulomb

B:-harmonic oscillator

C:-finite square well

D:-infinite square well

Answer:- Option-C

64:-``Half life of a radio active material is 4 days. After 20 days the fraction remaining undecayed will be

A:-1/32

B:-1/20

C:-1/16

D:-1/8

Answer:- Option-A

65:-Nuclear fusion requires high temperature because

A:-all nuclear reactions absorb heat

B:-the particles can not come closer unless they are moving rapidly

C:-the B.E. must be supplied from an external source

D:-mass defect must be supplied

Answer:- Option-B

66:-The ripple factor in a rectifier circuit indicates

A:-amount of a.c. voltage present in output

B:-amount of d.c. voltage present in output

C:-change in d.c. voltage when input a.c. changes

D:-change in d.c. voltage when load. changes

Answer:- Option-A

67:-The cathod of a zener diod in a voltage regulator is normally

A:-more positive than the anode

B:-more negative than the anode

C:-at +0.7 V

D:-grounded

Answer:- Option-A

68:-An oscillator differs from an amplifier because

A:-it has more gain

B:-it requres no input signals

C:-it requres no d.c. supply

D:-it always has the same output

Answer:- Option-B

69:-If maximum and minimum amplitudes of an amplitude modulated waves are 10V and 5V respectively, the modulation index is

A:-2

B:-0.5

C:-3.3

D:-0.33

Answer:- Option-D

70:-Thermal runaway is not possible in FET because as the temperature of FET increases

A:-the mobility decreases

B:-the transconductance increases

C:-the drain current increases

D:-none of the above

Answer:- Option-A

71:-The dimension of Cantor set is

A:-0

B:-0.631

C:-1.683

D:-1

Answer:- Option-B

72:-The fixed points of the Logistic map `x_(n+1)` = a`x_(n)` (1-`x_(n)`) are

A:-x=0 and x=1-`(1)/(a)`

B:-x=0 and x=1/a

C:-x=1 and x=1/a

D:-x=1 and x=1- `(1)/(a)`

Answer:- Option-A

73:-A stable and unstable fixed point collide each other and vanish as the control parameter is decreased in

A:-Hopf bifurcation

B:-Pitchfork bifurcation

C:-Transcritical bifurcation

D:-Saddle node bifurcation

Answer:- Option-D

74:-If l0> and l1> are eigen states of number operator which of these represent a state orthogonal to

`(1)/(sqrt(2))` (l0> + l1>)

A:-`(1)/(sqrt(2))` (l0> - l1>)

B:-`(1)/(sqrt(2))` (l0> + l1>)

C:-l1>

D:-l0>

Answer:- Option-A

75:-If ln> represent an eigen vector of number operator with eigen value n, the state a†aa†aln> has eigen value` `

A:-n

B:-n+1C:-n(n+1)

D:-n-1

Answer:-Question Cancelled

**Part 1 (1-25)|| Part 2 (26-50)|| Part 3 (51-75) || Part 4 (76-100)**

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