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Higher Secondary Examination -(Regular)-2022
HkkSfrd 'kkL= Physics
Hindi & English Version
Total Questions:19 Time- 3 Hrs
Total Printed Pages-13 Maximam Marks-70
egRoiw.kZ funsZ'k %&
1- lHkh iz'u vfuok;Z gSaA iz'u Øekad 5 ls 19 rd izR;sd esa vkUrfjd fodYi fn;s
x;s gSaA
2- iz'u Øekad 1 ls 4 rd izR;sd iz'u ij 7 vad rFkk izR;sd miiz'u ij 1 vad
fu/kkZfjr gS A
3- iz'u Øekad 5 ls 12 rd izR;sd ds 2 vad fu/kkZfjr gSaA ¼'kCn lhek 30 'kCn½
4- iz'u Øekad 13 ls 16 rd izR;sd iz'u ds 3 vad fu/kkZfjr gSaA ¼'kCn lhek 75 'kCn½
5- iz'u Øekad 17 dss fy;s 4 vad fu/kkZfjr gSaA ¼'kCn lhek 120 'kCn½
6- iz'u Øekad 18 ls 19 rd izR;sd iz'u ds 5 vad fu/kkZfjr gSaA ¼'kCn lhek 150 'kCn½
Important Instructions :-
1. All questions are compulsory. Internal choice is given in every question
from Question No 5 to 19.
2. For question number 1 to 4 There are 7 marks for each question. Each sub
question carring 1 mark .
3. For Question Number 5 to 12 there are 2 marks for each . For every
answer word limit is 30 .
4. For Question Number 13 to 16 there are 3 marks for each . For every
answer word limit is 75 .
5. For Question Number 17 there are 4 marks . For this answer,word
limit is 120 .
6. For Question Number 18 to 19 there are 5 marks for each questions . Word
limit for every answer is 150 .
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1- lgh fodYi pqudj fyf[k;s 𝟏×𝟕=𝟕
Select the correct option.
v½ ,d dwyke vkos'k esa bysDVª‚uksa dh la[;k gksrh gSA
(i) 6.25 × 10
(ii) 6.25 × 10
(iii) 1.6 × 10
(iv) 1.6 × 10
A) the number of electrons in one coulomb charge are:
(i) 6.25 × 10
(ii) 6.25 × 10
(iii) 1.6 × 10
(iv) 1.6 × 10
c½ xfreku vkos'k mRiUu djrk gSA
(i) dsoy fo|qr {ks=
(ii) dsoy pqacdh; {ks=]
(iii) fo|qr {ks= ,oa pqacdh; {ks= nksuks
(iv) uk fo|qr {ks= uk gh pqacdh; {ks=
B) A moving charge produces
(i) Only Electric field
(ii) Only magnetic field
(iii) Eelectric field and magnetic field both
(iv) Neither electric field nor megnetic field
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l½ pqacdh; ¶yDl dk S.I. ek=d gSA
(i) oscj
(ii) xkWl
(iii) v‚LVªsM
(iv) Vslyk
C) SI unit of magnetic flux is
(i) Weber
(ii) Gauss
(iii) Oersted
(iv) Tesla
n½ fo|qr pqacdh; rjax esa fo|qr {ks= ds ifjek.k E rFkk pqacdh; {ks= ds ifjek.k B esa
laca/k gSA
(i) 𝐵=
(ii) 𝐸=
(iii) E =B
(iv) 𝐵 = 𝐸𝑐
D) In electromagnetic wave, the magnitude of the electric field E and
magnitude of magnetic field B are releted as
i) 𝐵=
(ii) 𝐸=
(iii) E =B
(iv) 𝐵 = 𝐸𝑐
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bZ½ LoLF; us= ds fy, Li"V –f"V dh U;wure nwjh gksrh gSA
(i) vuar
(ii) 1 ehVj
(iii) 0-25 ehVj
(iv) 25 feyhehVj
E) The least distance of distinct vision for healthy eye is
(i) infinity
(ii) 1meter
(iii) 0.25 meter
(iv) 25 mili meter
Q½ laiks"kh O;frdj.k ds fy, nksuksa rjaxksa ds chp dykarj gksuk pkfg,A
(i) π
(ii) π2
(iii)
(iv) ’kwU;
F) For constructive interference the phase difference between two waves must
be:-
(i) π
(ii) π2
(iii)
(iv) Zero
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x½ foHkokarj 150 oksYV ij Rofjr bysDVªku ls lEc) Mh&czksxyh rjaxnS/;Z gksrh gSA
(i) 150 Ả
(ii) 1m
(iii) 1 nm
(iv) 1 Ả
G) The de-Broglie wavelength associated with an electron accelerated through a
potential difference of 150 volt is
(i) 150 Ả
(ii) 1m
(iii) 1 nm
(iv) 1 Ả
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2- fjä LFkkuksa dh iwfrZ dhft,A 𝟏×𝟕=𝟕
v½ ,d vkn'kZ oksYVehVj dk çfrjks/k -------------------------------------gksrk gSA
c½ Mk;useks ------------------------------------------- fl)kar ij vk/kkfjr gSA
l½ ijkcaSxuh fdj.kksa dh [kkst------------------------------------------- us dh FkhA
n½ fo|qr pqacdh; rjaxs------------------------------ gksrh gSA
b½ vkdk'k ds uhys fn[kkbZ nsus dk dkj.k ---------------------------gS!
Q½ 'osr çdk'k esa iryh fQYe jaxhu fn[kkbZ nsus dk dkj.k--- gSA
x½ NOT xsV dks--------------------------------- Hkh dgrs gSaA
Fill in the blanks-
A) The resistance of an ideal voltmeter is ..................................
B) Dynamo is based on the principle of .....................................
C) Ultraviolet rays was discovered by......................................
D) The electromagnetic waves are...........................................
E) Blue colour of sky is due to ......................................
F) The cause of a thin film to be seen coloured in white light is
....................
G) NOT GATE is also called ..................................................
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3. LrEHk **v** ds izR;sd dFku ds fy;s LrEHk **c** esa ls mi;qDr fodYi pqudj lgh
tksM+h cukbZ;s %& 𝟏×𝟕=𝟕
I II
v½ fo|qr 'kfDr P (i) 𝜔L
c½ izsj.k izfr?kkr XL (ii) /kqzo.k
l½ czwLVj dk fu;e (iii) I2R
n½ izdk'k dk df.kdk fl)kar (iv)
.
b½ fo|qr pqEcdh; rjax dh Dok.Ve izd`fr (v) /kkjk dk pqEcdh; izHkko
Q½ tsuj Mk;ksM (vi) I.R.
x½ py dq.Myh /kkjkekih (vii) U;wVu
(viii) izdk'k fo|qr izHkko
(ix) izdk'k dk izdh.kZu
(x) cksYVst fu;eu
Select the appropriate option from column ''B'' for each statement of column
"A" and make the correct pairs.
I II
A) Electrical power P (i) 𝜔L
B) Inductive reactance XL (ii) Polarisation
C) Brooster's Law (iii) I2R
D) Corpuscular theory of Light (iv)
.
E) Quantum property of Electro-
magnetic wave (v) Magnatic effact of current.
F) ZENER DIODE (vi) IR
G) Moving Coil galvanometer (vii) Newton
(viii) Photo electric effect
(ix) Scattering of Light
(x) Voltage regulator
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4½ çR;sd ç'u dk mRrj ,d okD; esa fyf[k,A 𝟏×𝟕=𝟕
Write the answer of each question in one sentence.
v½ fo|qr {ks= dh rhozrk dk S.I. ek=d fyf[k,A
Write the S.I. unit of intensity of electric field.
c½ nks vkg~e o 3 vksg~e ds izfrjks/kksa dks Js.kh Øe esa tksM+us ij rqY; izfrjks/k
fdruk gksxk\
2𝛺 and 3𝛺 resistors are connected in series. What will be the
equivalent recistance of this combination ?
l½ VªkalQkeZj fdl fl)kar ij dk;Z djrk gS\
On what principle does a transformer work?
n½ Hkkjr esa ?kjksa esa ç;qä fo|qr /kkjk dh vko`fÙk fdruh gksrh gS\
What is the frequency of electric current used in India in domestic
purpose?
b½ dksgjs esa nwj rd oLrqvksa dks ns[kus ds fy, mi;ksxh fdj.kksa dk uke fyf[k,A
Name the radiation useful for seeing distant objects in fog.
Q½ LuSy dk fu;e fyf[k,A
Write Snell's law.
x½ flfyd‚u v/kZpkydksa ls cus P-N laf/k Mk;ksM dk çkphj foHko fdruk gksrk
gSA
What is the potential barrier of P-N Junction diode made by
silicon semiconductors?
5- Toyu'khy inkFkksaZ dks ys tkus okyh xkfM+;ksa ls tathjs tehu dks Nwrh gqbZ yxkbZ
tkrh gSaA D;ksa \ 2
The vehicle carrying inflammable substances have metallic strings
suspended from them touching the ground, Why?
vFkok OR
/kkfjrk ds SI ek=d dks ifjHkkf"kr dhft, A
Define SI unit of capacitance.
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6- tc fdlh okgu ds batu dks pkyw djrs gSa rks ,d {k.k ds fy, mldh gsM ykbV
dh jks'kuh /kheh gks tkrh gSA D;ksa \ 2
When a vehicle's engine is started its headlights become dim for a moment.
Why?
vFkok OR
vuvkseh; çfrjks/k D;k gS\ bldk ,d mnkgj.k fyf[k,
What is the nonohmic resistance? Write its one example.
7- D;k ,d leku vko`fÙk ds lkbDyksVª‚u }kjk çksVku ,oa MîwVªku Rofjr djk;k tk
ldrk gS\ vius mÙkj dk dkj.k fyf[k,A 2
A deutron and a proton are accelerated by the cyclotron. Can both be
accelerated with the same oscillator frequency? Give reason to justify your
answer.
vFkok OR
¶ysfeax ds ck,a gkFk dk fu;e fyf[k,A
Write the Fleming's left hand rule.
8- Loçsj.k ,oa vU;ksU; çsj.k esa dksbZ nks varj fyf[k,A 2
Write any two differences between self induction and mutual induction.
vFkok OR
fo|qr ifjiFk dks vpkud rksM+us ij fpaxkjh fudyrh gSA D;ksa \
A spark is produced when an electrical circuit is switched off suddenly.
Why?
9- ok;q dk cqycqyk ty esa fdl çdkj O;ogkj djrk gS rFkk D;ksa\ 2
How does an air bubble behaves in water and why?
vFkok OR
ySl ds fy, la;qXeh Qksdl dks ifjHkkf"kr dhft,A
Define conjugate foci for a lens.
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10- [krjs ds flXuy yky gksrs gSa D;ksa\ 2
The signal of danger is red. Why?
vFkok OR
izdk'k ds O;frdj.k rFkk foorZu esa dksbZ nks varj fyf[k,A
Write any two differences between interference and diffraction of light.
11- Mh& czksXyh dk d.k rjax fl)kar nSfud thou esa –f"Vxkspj ugha gksrkA D;ksa \ 2
The de-Broglie's matter wave theory is not percetible in daily life. Why?
vFkok OR
fujks/kh foHko ¼laLrC/k foHko½dks ifjHkkf"kr dhft,A
Define cut off potential.
12- ,d f}vk/kkjh flXuy 101011 dks NOT xsV ij fuosf'kr fd;k tkrk gSA fuxZr
flXuy D;k gSA 2
A binary signal 101011 applied to a NOT gate. What will be the outpur
signal .
vFkok OR
P izdkj ds v)Zpkyd esa /kkjk izokg dh izfØ;k le>kb;sA
How does the current flow in a P type semiconductor ? Explain.
13- foHkoekih rFkk oksYVehVj esa dksbZ rhu varj fyf[k, A 3
Write any three differences between a potentiometer and a voltmeter.
vFkok OR
fof'k"V çfrjks/k vkSj çfrjks/k esa dksbZ rhu varj fyf[k,A
Write any three differences between specific resistance and resistance.
14- ehVj lsrq dh lgk;rk ls fdlh rkj dk vKkr çfrjks/k Kkr djus ds iz;ksx dk
o.kZu fuEu fcanqvksa ds vk/kkj ij dhft,A 3
(a) fo|qr ifjiFk
(b) lw= dh LFkkiuk
(c) lko/kkfu;ka ¼dksbZ nks½
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Describe the experiment to determine the unknown resistance of a wire by
metre bridge under following headings.
(a) Circuit diagram
(b) Derivation of formula
(c) precautions (any two)
vFkok OR
foHko ekih dh lgk;rk ls nks lsyks ds fo- ok- c- dh rqyuk djus ds ç;ksx dk
o.kZu fuEufyf[kr 'kh"kZdksa ds varxZr dhft,A
(a) fo|qr ifjiFk
(b) lw= dh LFkkiuk
(c) lko/kkfu;ka ¼dksbZ nks½
Describe experiment to compare the E M F of two cells by a potentiometer
under the following headings.
(a) Circuit diagram
(b) Derivation of formula
(c) precautions (any two)
15- ck;ks lsoVZ dk fu;e fyf[k,A bldh lgk;rk ls /kkjk ds S.I. ek=d ,safi;j dks
ifjHkkf"kr dhft,A 3
Write Biot-Savart's law. With its help, define the S.I. unit of current
ampere.
vFkok OR
o`Ùkkdkj /kkjkokgh dq.Myh esa cgus okyh /kkjk ds dkj.k mlds dsaæ ij mRiUu
pqacdh; {ks= dh rhozrk ds fy, O;atd Kkr dhft,A
Obtain expression for the intensity of magnetic field at the center of a
current carrying circular coil.
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16- ,d ysal dh {kerk &2-5 D gSA ySal dh ç—fr rFkk Qksdl nwjh Kkr dhft,A 3
The power of a lens is -2.5D. Find the nature and focal length of lens.
vFkok OR
ok;q ds lkis{k dkap dk viorZukad 3/2 gS rks dkap ok;q ds tksM+s ds fy, Økafrd
dks.k Kkr dhft,A ¼sin 420 = 2/3½
Reffractive index of glass with respect to air is 3/2. Calculate critical angle
for the glass-air pair. ( sin 420 = 2/3)
17- fn"Vdkjh fdls dgrs gSa \ P-N laf/k Mk;ksM dk iw.kZ rjax fn"Vdkjh ds :i esa
mi;ksx dk o.kZu fuEu 'kh"kZdksa esa dhft;sA 4
(1) ifjiFk dk ukekafdr js[kkfp=
(2) fuos'kh rFkk fuxZr foHko dk le; ds lkFk ifjorZu vkjs[k
What are rectifiers? Explain the use of P-N junction diode as a full wave
rectifier under the following headings.
(1) Labelld circuit diagram
(2) variation of input and output potential with respect to time.
vFkok OR
AND ,oa OR xsV dk y‚ftd çrhd] cqfy;u O;atd ]rqY; ifjiFk ,oa lR;
lkj.kh fyf[k,A
Write the logic symbol, Boolean expression, equivalent circuit and truth
table of AND and OR gate.
18 fdlh fo|qr f}/kzqo dh fuj{kh; fLFkfr esa fdlh fcanq ij fo|qr {ks= dh rhozrk ds
fy, O;atd Kkr dhft,A 5
Derive an expression for the intencity of electric field at a point in
transverse position due to an electric dipole.
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vFkok OR
vkaf'kd :i ls ijkoS|qr inkFkZ dh mifLFkfr esa lekarj IysV la/kkfj= dh /kkfjrk
ds fy, O;atd Kkr dhft,A
Derive an expression of capacity of parallel plate condenser when there
is partial dielectric medium between the plates.
19- Js.kh L-C-R ifjiFk ds fy, fuEufyf[kr dh x.kuk dhft,A 5
(a) ifj.kkeh foHkokarj
(b) ifjiFk dh çfrck/kk
(c) ifj.kkeh oksYVst rFkk /kkjk ds e/; dykUrj
Calculate the following for the series L C R circuit-
(a) resultant potential difference
(b) Impedance of the circuit
(c) phase difference between resultant voltage and current.
vFkok OR
nks yach /kkjkokgh ifjukfydkvks ds vU;ksU; çsjdRo ds fy, O;atd çkIr dhft,
rFkk bls çHkkfor djus okys dkjd fyf[k,A
Establish expression for the mutual inductance between two long
Current carrying solenoids. What are the factors. affecting it ?