## Kerala PSC Previous Years Question Paper & Answer

Title : HSST PHYSICS SR FOR SC/ST KHSE
Question Code : A

Page:8

Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'HSST PHYSICS SR FOR SC/ST KHSE' And exam conducted in the year 2016. And Question paper code was '073/2016/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.

page: 8 out of 11
Excerpt of Question Code: 073/2016/OL

Question66:-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
Question67:-The cathod of a zener diod in a voltage requlator is normally
A:-more positive than the anode
B:-more negative than the anode
C:-at +0.7 V
D:-grounded
Question68:-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
Question69:-If maximum and minimum amplitudes of an amplitude modulated waves are 10V and 5V respectively, the
modulation index is
‏2ھ‎
‎6-0.5
‎6:33
‎D:-0.33
Question70:-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
Question71:-The dimension of Cantor set is
ಹಿಂ
B:-0.631
C:-1.683
0-1
Question72:-The fixed points of the Logistic map + (7+1)` = चः (7)}` பற) ௯
:-x=0 and x=1-"(1)/(a)"
0 and x=1/a
1 and x=1/a
பவ காய ஙு
Question73:-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
Question74:-If 10> and 11> are eigen states of number operator which of these represent a state orthogonal to
ലു + 11>}
ക ൮/2)” (10> - 11>}
8:- ൮/2)” (05 4 115)
രഃ
0:0௦
Question75:-If In> represent an eigen vector of number operator with eigen value n, the state ataataln> has eigen value™ *
ಹಗ
B:-n+1

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