Rajasthan Board Class 10 Question Paper 2022 Science

Rajasthan Board

QUESTION
PAPER

Zm_m§H$ Roll No.

Tear Here
Sl.No. :

No. of Questions – 23 S–07–Science
No. of Printed Pages – 15

_mÜ`{_H$ narjm, 2022
SECONDARY EXAMINATION, 2022
{dkmZ

TEAR HERE TO OPEN THE QUESTION PAPER
SCIENCE
g_` : 2 KÊQ>o 45 {‘{ZQ>
nyUmªH$ : 80

àíZ nÌ H$mo ImobZo Ho$ {bE `hm± \$m‹S>|
narjm{W©`m| Ho$ {bE gm_mÝ` {ZX}e …
GENERAL INSTRUCTIONS TO THE EXAMINEES :
1) narjmWu gd©àW_ AnZo àíZ-nÌ na Zm_m§H$ A{Zdm`©V… {bI| &
Candidate must write first his / her Roll No. on the question paper
compulsorily.
2) g^r àíZ hb H$aZo A{Zdm`© h¢ &
All the questions are compulsory.
3) àË`oH$ àíZ H$m CÎma Xr JB© CÎma-nwpñVH$m _| hr {bI| &
Write the answer to each question in the given answer-book only.
4) {OZ àíZm| Ho$ AmÝV[aH$ IÊS> h¢, CZ g^r Ho$ CÎma EH$ gmW hr {bI| &
For questions having more than one part, the answers to those parts are to
be written together in continuity.
5) àíZ-nÌ Ho$ {hÝXr d A§J«oOr ê$nm§Va _| {H$gr àH$ma H$s Ìw{Q> / A§Va / {damoYm^mg hmoZo na {hÝXr ^mfm
Ho$ àíZ H$mo ghr _mZ| &
If there is any error / difference / contradiction in Hindi & English versions
of the question paper, the question of Hindi version should be treated valid.
6) àíZ H«$_m§H$ 17 go 23 ‘| AmÝV[aH$ {dH$ën h¢ &
`hm± go H$m{Q>E

There are internal choice in Q. No. 17 to 23.

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IÊS> - A
SECTION - A
~hþ{dH$ënr àíZ:
1) {ZåZ àíZm| Ho$ CÎma H$m ghr {dH$ën M¶Z H$a CÎmanwpñVH$m ‘| {b{IE -
Multiple Choice Question -
Write the correct option of answers of the following question in the answer book-
i) ‘mZd ‘| öX¶ EH$ V§Ì H$m ^mJ h¡ Omo g§~§{YV h¡ - [1]

(A) nmofU
(~) CËgO©Z
(g) ídgZ
(X) n[ag§MaU
The heart in human beings are a part of the system for -

(A) Nutrition

(B) Excretion

(C) Respiration

(D) Circulation

ii) H$m¡Zgo ¶§Ì Ûmam a³VXm~ Zmnm OmVm h¡? [1]

(A) ñ’$mB©½‘mo‘¡Zmo‘rQ>a
(~) ~¡amo‘rQ>a
(g) ñQ>oWmoñH$mon
(X) bo³Q>mo‘rQ>a
By which instrument blood pressure is measured?

(A) Sphygmomanometer

(B) Barometer

(C) Stethoscope

(D) Lactometer

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iii) AdQw>J«§{W H$mo Wm¶am°p³gZ hm°‘m}Z ~ZmZo Ho$ {bE Amdí¶H$ h¢? [1]
(A) gmo{S>¶‘
(~) nmoQ>o{e¶‘
(g) Am¶moS>rZ
(X) ‘¡½Zr{e¶‘
Thyroid gland requires which of the following to make thyroxine hormone?
(A) Sodium
(B) Potassium
(C) Iodine
(D) Magnesium

iv) g^r AZ¡pÀN>H$ {H«$¶mAm| H$m {Z¶§ÌU ‘pñVîH$ H$m H$m¡Zgm ^mJ H$aVm h¡§? [1]
(A) ‘oSw>bm
(~) AJ«‘pñVîH$
(g) à‘pñVîH$
(X) AZw‘pñVîH$
Which part of the brain regulates all the involuntary actions?
(A) Medulla
(B) Fore-Brain
(C) Cerebrum
(D) Cerebellum

v) {ZåZ{b{IV ‘| go H$m¡Zgo nXmW© ‘§o {H«$ñQ>bZ Ob CnpñWV Zht h¡- [1]
(A) YmoZo H$m gmoS>m
(~) {Oßg‘
(g) ~oqH$J gmoS>m
(X) ßbmñQ>a Am’$ no[ag
Among the following which substance does not have water of crystallisation.
(A) Washing soda
(B) Gypsum
(C) Baking soda
(D) Plaster of Paris

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vi) [1]
H$mH©$

J¡g
(X) H$m§M H$s Zbr

VZw H2SO4
XmZoXma OñVm

{X¶o J¶o {MÌmZwgma Cnamoº$ A{^{H«$¶m ‘| ~ZZo dmbr J¡g X H$mo nhMm{Z¶o &
(A) O 2 (~) CO2
(g) H2 (X) O 3

Cork

gas
(X) Glass tube

Dilute H2SO4
Zinc granules

According to the given diagram identify the gas (X) formed in above reaction.
(A) O 2 (B) CO 2
(C) H2 (D) O3

vii) EH$ VËd Q ‘wbm¶‘ h¡ Am¡a MmHy$ go AmgmZr go H$mQ>m Om gH$Vm h¡ & VËd R>§S>o Ob Ho$ gmW VoOr go A{^{H«$¶m
H$aVm h¡ &
{ZåZ{b{IV ‘| go VËd H$mo nhMm{Z¶o & [1]
(A) K (~) Ag
(g) Cu (X) Pb
An element Q is soft and can be cut by knife easily. Element reacts vigorously with cold water.
Identify the element from the following.
(A) K (B) Ag
(C) Cu (D) Pb

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viii) namdV©Z Ho$ {Z¶‘ bmJw hmoVo h¢ - [1]
(A) Ho$db g‘Vb Xn©U Ho$ {bE &
(~) Ho$db CÎmb Xn©U Ho$ {bE &
(g) Ho$db AdVb Xn©U Ho$ {bE &
(X) Cnamoº$ g^r Ho$ {bE &
The laws of reflection hold good for
(A) Plane mirror only
(B) Convex mirror only
(C) Concave mirror only
(D) All of above

ix) nmZr H$m AndV©Zm§H$ 1.33 h¡ & nmZr ‘| àH$me H$s Mmb hmoJr - [1]
(A) 1.33 × 108 m/s
(~) 3 × 108 m/s
(g) 2.26 × 108 m/s
(X) 2.56 × 108 m/s
The refractive index of water is 1.33. The speed of light in water will be
(A) 1.33 × 108 m/s
(B) 3 × 108 m/s
(C) 2.26 × 108 m/s
(D) 2.56 × 108 m/s

x) {dÚwV Amdoe H$m SI ‘mÌH$ h¡ - [1]
(A) Hy$bm°‘
(~) dmoëQ>
(g) Eopån¶a
(X) Amo‘
The SI unit of electric charge is -
(A) Coulomb
(B) Volt
(C) Ampere
(D) Ohm

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xi) {XE JE n[anW ‘| {~ÝXþ A Ed§ B Ho$ ‘ܶ Vwë¶ à{VamoY h¡ - [1]

C

2Ω 2Ω

A B
4Ω

(A) 2Ω (~) 3Ω
(g) 4Ω (X) 8Ω
The equivalent resistance between A and B in given circuit is

C

2Ω 2Ω

A B
4Ω

(A) 2Ω (B) 3Ω
(C) 4Ω (D) 8Ω

xii) {dÚwV Ymam CËnÞ H$aZo H$mo ¶w{º$ H$mo H$hVo h¢ - [1]
(A) {dÚwV ‘moQ>a
(~) {dÚwV O{ZÌ
(g) Eo‘rQ>a
(X) JoëdoZmo‘rQ>a
The device used for producing electric current is called a -
(A) electric motor
(B) electric generator
(C) ammeter
(D) galvano meter

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2) [aº$ ñWmZm| H$s ny{V© H$s{OE -

Fulfill the blank places -

i) òm{dV hm°‘m}Z Ho$ g‘¶ Am¡a ‘mÌm H$mo _____ {H«$¶m{d{Y go {Z¶§{ÌV {H$¶m OmVm h¡ & [1]

The timing and amount of hormone released are regulated by ______ mechanism.

ii) g§Xoe g§Mm[aV H$aZo Ho$ {bE V§{ÌH$m V§Ì _____ AmdoJ H$mo à¶wº$ H$aVm h¡ & [1]

The nervous system uses _____ impulse to transmit message.

iii) nm[aV§Ì ‘| EH$ nmofr ñVa go Xÿgao nmofr ñVa ‘| D$Om© H$s _____ hmoVr h¡ & [1]

In an ecosystem there is always _______ of energy from one trophic level to another trophic
level.

iv) {Q>har ~m§Y _____ ZXr na ~Zm h¡ & [1]

Tehri dam is built on _______ river.

v) à{V{~å~ Xÿar (v) VWm {~å~ Xÿar (u) H$m AZwnmV b|g Ho$ _____ H$mo 춳V H$aVm h¡ & [1]

The ratio of image-distance (v) and object-distance (u) represent the _____ by a lens.

vi) {dÚwV ~ë~mo§ Ho$ V§VwAmo Ho$ {Z‘m©U ‘| _____ H$m Cn¶moJ {H$¶m OmVm h¡ & [1]

_______ is used for construction of filaments in electric bulbs.

3) A{VbKwÎmamË‘H$ àíZ (àíZm| H$m CÎma EH$ eãX ¶m EH$ n§{³V ‘| {b{IE &)

Very short answer type question (Answer the questions in one word or in one line.)

i) V§{ÌH$m D$VH$ {H$gHo$ g§J{R>V Omb H$m ~Zm hmoVm h¢? [1]

Nervous tissue are made up of which organised network of tissue?

ii) H$m¡Zgr A§V:ómdr J«§{W ‘mZd eara H$s d¥[Õ H$m {Z¶‘Z H$aVr h¢? [1]

Which endocrine gland regulate growth of human body?

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iii) CFC H$m nyam Zm‘ {b{IE & [1]

Write the full name of CFC.

iv) ‘mZd Ho$ H$m¡Zgo A§J ‘| H$mo{b’$m‘© OrdmUw nm¶m OmVm h¡? [1]

Coliform bacteria is found in which organ in humans?

v) nwZ: MH«$U ³¶m h¡? [1]

What is recycling?

vi) g§Vao ‘§o nm¶o OmZo dmbo Aåb H$m Zm‘ {b{IE & [1]

Write the name of the acid present in Orange.

vii) Aåb Ho$ Obr¶ {db¶Z Ûmam {dÚwV Ho$ g§MmbZ H$m Zm‘m§{H$V {MÌ ~ZmB¶o & [1]

Draw a labelled diagram for conduction of electricity by an aqueous solution of acid.

viii) ñdmX Ho$ AmYma na Aåb d jma ‘§o AÝVa {b{IE & [1]

Write the difference between acid and base on the basis of taste.

ix) X§V j¶ H$m H$maU {b{IE & [1]

Write the cause of tooth decay.

x) {H$gr {dÚwV n[anW ‘§o Ymam {Z¶§ÌH$ H$m ³¶m H$m¶© h¡? [1]

What is the function of rheostat in an electric circuit?

xi) à˶mdVu Ymam VWm {XîQ> Ymam ‘| ³¶m AÝVa h¡? [1]

What is the difference between direct current and alternating current?

xii) {H$gr {dÚwV Ymamdmhr grYr b§~r n[aZm{bH$m Ho$ ^rVa CËnÞ Mwå~H$s¶ joÌ {H$g àH$ma H$m h¡? [1]

Which type of magnetic field is produced in a current carrying long straight solenoid?

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IÊS> - ~

SECTION - B

bKwCÎmamË‘H$ àíZ-àíZ g§»¶m 04 go 16 Ho$ CÎma CÎmanwpñVH$m ‘§o {b{IE & (eãX gr‘m 50 eãX)
Short answer type question-Write the answers of question number 04 to 16 in
answer book (Word limit 50 words)

4) O¡d-{dH$mg àH«$‘ ‘| Ordmí‘ H$s ³¶m ^y{‘H$m h¢? [2]

What is the role of fossil in process of evolution?

5) ‘mZd ‘| Xmoham n[ag§MaU ³¶m| Amdí¶H$ h¢? [2]

Why double circulation is necessary in human?

6) ‘o‹T>H$ Ed§ {N>nH$br Ho$ g‘OmV A§J H$m {MÌ ~ZmBE & [1+1=2]

Draw a diagram of homologous organ of frog and lizard.

7) nm[aV§Ì ‘§o CËnmXH$ d Cn^moº$m {H$go H$hVo h¢? g‘PmB¶o & [2]

What is producer and consumer in an ecosystem? Explain.

8) bmoh YmVw na ^mn H$s {H«$¶m H$m Zm‘m§{H$V {MÌ ~ZmB¶o & [2]

Draw a labelled diagram for reaction of steam on iron metal.

9) bdU Ho$ {db¶Z H$s MmbH$Vm H$s Om±M H$m Zm‘m§{H$V {MÌ ~ZmB¶o & [2]

Draw a labelled diagram for testing the conductivity of salt solution.

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10) ‘¡½Zr{e¶‘ [a~Z H$m dm¶w ‘| XhZ H$a dm°M ½bmg ‘| B³H$R>o hmoZo dmbo CËnmX Ho$ Zm‘ g{hV Zm‘m§{H$V {MÌ ~ZmBE &[2]

Draw a labelled diagram for burning of magnesium ribbon in air along with the name of the product
collected in the watch glass.

11) D$î‘memofr Am¡a D$î‘mjonr A{^{H«$¶mAm| H$mo n[a^m{fV H$s{OE & [2]

Define endothermic and exothermic reactions.

12) VݶVm H$mo n[a^m{fV H$s{OE Am¡a g~go A{YH$ Vݶ YmVw H$m Zm‘ {b{IE & [1+1=2]

Define ductility and write the name of the most ductile metal.

13) àH$me Ho$ AndV©Z Ho$ XmoZmo§ {Z¶‘ {b{IE & [1+1=2]

Write both the laws of refraction of light.

14) loUr H«$‘ ‘| g§¶mo{OV Mma à{VamoYH$m| R1, R2, R3 Ed§ R4 Ho$ Vwë¶ à{VamoY kmV H$aZo Ho$ gyÌ H$s ì¶wËn{Îm H$s{OE &[2]

Deduce the expression for the equivalent resistance of the series combination of four resistors R1, R2,
R3 and R4.

15) EH$ 4Ω à{VamoYH$ ‘| 10A Ymam 2 goH$ÊS> àdm{hV H$aZo na CËnÞ D$î‘m H$s ‘mÌm kmV H$s{OE & [2]

Determine the amount of heat produced when 10A current is flowing through a 4Ω resistor for 2
seconds.

16) n[aZm{bH$m ³¶m h¡? n[aZm{bH$m go {dÚwV Mwå~H$ H¡$go àmá H$aVo h¡? [1+1=2]

What is a solenoid? How can an electromagnet formed by using a solenoid?

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IÊS> - g
SECTION - C

XrK© CÎmamË‘H$ àíZ-àíZ g§»¶m 17 go 20 Ho$ CÎma CÎmanwpñVH$m ‘| {b{IE & (eãX gr‘m 100 eãX)
Long answer type question-Write the answers of question number 17 to 20 in
answer book (Word limit 100 words)

17) àH$me g§íbofU àH«$‘ Ho$ Xm¡amZ hmoZo dmbr VrZm| KQ>ZmAm| H$mo g‘PmBE & [1+1+1=3]

Explain three events that occur during the process of photosynthesis.

AWdm/OR
J¡gm§o Ho$ {d{Z‘¶ Ho$ {bE ‘mZd ’w$â’w$g H$s H$m¶©àUmbr H$mo g‘PmBE & [3]

Explain the mechanism of human lung for exchange of gases.

18) ßb¡Zo[a¶m H$m {MÌ ~ZmBE VWm {dH$mgr¶ g§~§Y ‘§o Ordmí‘ Ho$ ‘hËd H$mo g‘PmBE & [1+2=3]

Draw a diagram of planaria and explain the importance of fossil in evolutionary relationship.

AWdm/OR
‘o§S>b Ho$ {H$gr EH$ {dH$ënr Omo‹S>o Ho$ g§H$aU H$mo AmaoI {MÌ Ûmam g‘PmBE & [1+2=3]

Explain any one pair of different characteristic breed of Mendel by line diagram.

19) i) Am°³grH$aU (CnM¶Z) A{^{H«$¶m H$mo CXmhaU g{hV g‘PmB¶o &
ii) {ZåZ{b{IV amgm¶{ZH$ g‘rH$aU H$mo g§Vw{bV H$s{OE &
NH3 + CuO → Cu + N2 + H2O
[2+1=3]

i) Explain the oxidation reaction with example.

ii) Balance the following chemical equation

NH3 + CuO → Cu + N2 + H2O

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AWdm/OR
i) AnM¶Z A{^{H«$¶m H$mo CXmhaU g{hV g‘PmB¶o &
ii) {ZåZ{b{IV amgm¶{ZH$ g‘rH$aU H$mo g§Vw{bV H$s{OE &
NaOH + H2SO4 → Na2SO4 + H2O
[2+1=3]
i) Explain the reduction reaction with example.
ii) Balance the following chemical equation.
NaOH + H2SO4 → Na2SO4 + H2O

20) {dÚwV ‘moQ>a H$m ³¶m {gÕmÝV h¡? {dÚwV ‘moQ>a H$m Zm‘m§{H$V {MÌ ~ZmH$a H$m¶© àUmbr g‘PmB¶o & [1+2=3]
What is the principle of an electric-motor? Explain the working of an electric-motor by drawing its
labelled diagram.
AWdm/OR
âbo{‘§J H$m dm‘ hñV {Z¶‘ {b{IE & {H$gr Mwå~H$s¶ joÌ ‘| aIo {dÚwV Ymamdmhr MmbH$ na {MÌ Ûmam CËnÞ ~b
H$mo g‘PmB©¶o & [1+2=3]
Write the Fleming's left-hand rule. Explain the force produced when a current-carrying conductor is
placed in a magnetic field with the help of a diagram.

IÊS> - X
SECTION - D
{Z~ÝYmË‘H$ àíZ-àíZ g§»¶m 21 go 23 Ho$ CÎma CÎmanwpñVH$m ‘| {b{IE (eãX gr‘m 250 eãX)
Essay type question-Write the answers of question number 21 to 23 in answer
book (Word limit 250 words)

21) i) à{VdVu {H«$¶m H$m EH$ CXmhaU {b{IE &
ii) O§VwAm| ‘| à{VdVu Mmn ³¶m| {dH${gV hþAm h¡?
iii) à{VdVu Mmn H$m Zm‘m§{H$V {MÌ ~ZmBE &
[1+2+1=4]
i) Write an example of reflex action.
ii) Why reflex arc have evolved in animals?
iii) Draw a labelled diagram of reflex arc.

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AWdm/OR
i) AÊS>me¶ Ûmam ómdrV hm°‘m}Z H$m Zm‘ {b{IE &
ii) {H$Ýht Xmo A§V:ómdr J«pÝW¶m| H$m H$m¶© {b{IE &
iii) ‘mXm ‘mZd ‘| A§V:ómdr J§«{W¶m| H$s pñWVr H$m Zm‘m§{H$V {MÌ ~ZmBE &
[1+2+1=4]

i) Write the name of hormone secreted by ovary.

ii) Write the functions of any two endocrine gland.

iii) Draw a labelled diagram of position of endocrine gland in female human being.

22) i) {ZåZ{b{IV H$mo gw‘o{bV H$s{OE-
(P) {Oßg‘ i) NaHCO3

(Q) {da§OH$ MyU© ii) CaSO4. ½ H2O

(R) ~oqH$J gmoS>m iii) CaOCl2

(S) ßbmñQ>a Am°’$ no[ag iv) CaSO4. 2H2O

ii) O~ gmYmaU Z‘H$ Ho$ Obr¶ {db¶Z ‘| {dÚwV Ymam àdm{hV H$s OmVr h¡ V~ gmo{S>¶‘ hmBS´>m°³gmBS> Ho$ gmW
Xmo J¡go 'X' d 'Y' {ZH$bVr h¡ & J¡g 'X' ’$Q>-’$Q> H$s Üd{Z Ho$ gmW ObVr h¡ VWm J¡g 'Y' Ob H$mo
H$sQ>mUw‘w³V H$aZo Ho$ {b¶o Cn¶moJr h¡ & J¡g 'X' d 'Y' H$m¡Zgr hm|Jr, CZHo$ Zm‘ {b{I¶o &
[2+1+1=4]

i) Match the following-

(P) Gypsum i) NaHCO3

(Q) Bleaching powder ii) CaSO4. ½ H2O

(R) Baking soda iii) CaOCl2

(S) Plaster of Paris iv) CaSO4. 2H2O

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ii) When electricity is passed through the solution of common salt then two gases 'X' and 'Y' are
liberated along with sodium hydroxide. Gas 'X' burns with pop up sound and gas 'Y' is useful for
disinfecting water. What will be the gases 'X' and 'Y', write their names.
AWdm/OR
i) H«$‘ g§ nXmW© H$m Zm‘ pH H$m ‘mZ

1 Zt~y H$m ag 2.2

2 {gaH$m 3.76

3 OR>a ag 1.2

4 Q>‘mQ>a H$m ag 4.4

Cnamoº$ gmaUr Ho$ AmYma na nXmWm] H$s hmBS´>moOZ Am¶Z H$s gm§ÐVm H$mo KQ>Vo H«$‘ ‘| {b{IE &

ii) O~ EH$ gmo{S>¶‘ ¶m¡{JH$ 'X' H$s VZw HCl Ho$ gmW A{^{H«$¶m hmoVr h¡ V~ bdU, Ob d EH$ J¡g 'Y' àmá
hmoVr h¡ & ¶m¡{JH$ 'X' H$m nmdamoQ>r (~o«S>) H$mo ‘wbm¶‘ d ñn§Or ~ZmZo Ho$ {b¶o Cn¶moJ hmoVm h¡ & J¡g 'Y' MyZo Ho$
nmZr H$mo Xÿ{Y¶m (ídoV Adjon) H$aVr h¡ & ¶m¡{JH$ 'X' d J¡g 'Y' H$m Zm‘ {b{IE &
[2+1+1=4]

i) Sr. No. Name of substances pH value

1 Lemon Juice 2.2

2 Vinegar 3.76

3 Gastric Juice 1.2

4 Tomato Juice 4.4

Write descending order of hydrogen ion concentration of substances on the basis of above table.

ii) When a sodium compound 'X' reacts with dilute HCl then salt, water and gas 'Y' is obtained.
Compound 'X' is used to make bread soft and spongy. Gas 'Y' turns lime water milky (white
precipitate). Write the names of compound 'X' and gas 'Y'.

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23) AdVb Xn©U Ho$ ‘w»¶ ’$moH$g H$s n[a^mfm {b{IE &

EH$ 4.0cm gmBO H$m q~~, {H$gr 12.0 cm ’$moH$g Xÿar Ho$ AdVb Xn©U go 18cm Xÿar na aIm h¡ & Xn©U go {H$VZr
Xÿar na {H$gr naXoo H$mo aIm OmE {H$ ñnîQ> à{V{~å~ àmá hmo? à{V{~å~ H$s àH¥${V Ed§ gmBO {b{IE & AdVb Xn©U
Ho$ gm‘Zo ‘w»¶ ’$moH$g F VWm dH«$Vm Ho$ÝÐ C Ho$ ‘ܶ pñWV {~å~ H$m à{V{~å~ ~ZZm Xem©Zo Ho$ {bE {H$aU AmaoI
~ZmB©¶o & [1+2+1=4]

Write the definition of principle focus of a concave mirror. An object of 4.0 cm size is placed at 18 cm
in front of a concave mirror of focal length 12.0 cm. At what distance from the mirror should a screen
be placed in order to obtain a sharp image? Find the nature and the size of the image. Draw a ray-
diagram for the image formation when an object is placed between principal focus F and centre of
curvature C in front of a concave mirror.
AWdm/OR

boÝg H$s j‘Vm go AmnH$m ³¶m Ame¶ h¡? EH$ S>m°³Q>a +2.0D j‘Vm H$m g§emoYH$ boÝg {ZYm©[aV H$aVm h¡ & boÝg H$s
’$moH$g Xÿar kmV H$s{OE & ¶h {H$g àH$ma H$m boÝg h¡? EH$ AdVb boÝg Ûmam à{V{~å~ H$m ~ZZm Xem©Zo Ho$ {bE H$moB©
^r EH$ {H$aU {MÌ ~ZmB©¶o & [1+2+1=4]
What do you understand by power of a lens? A doctor has prescribed a corrective lens of power
+ 2.0D. Find the focal length of the lens. What type of lens is this? Draw any ray diagram for the image
formation by a concave lens.



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TH
NY
A
TE
RI
W
O T
N
DO