01' laIqø Ôùka iïnkaOfhka my; ljr j.ka;sh i;H fõo@

1' ridhksl iajhxfmdaISka fõ'

2' mshú weig ksÍËKh lsÍug yels Ôùka fõ'

3' ffi,Sh ixúOdkhla fkdue;s Ôùka fõ'

4' iS>% j¾Ok yd m%ckk iS>%;djhla we;s Ôùka fõ'

5' ixÑ; wdydrh f,i msIagh muKla we;s Ôùka fõ'

02' bkaishq,Ska fyda¾fudakh ksmoùu i`oyd cdk bxðfkare ;dËKfha § Ndú;d lrk laIqøÔúhd

jkafka"

1' Agrobacterium tumefaciens 2' Bacillus thuringiensis

3' Corynebacterium glutanicum 4' Ervivnia uredovora

5' Escherichia coli

03' rkajka iy,a w;r ksIamdokh i`oyd wjYH cdkh ,nd .ekSug Ndú;d l< yels nelaàßhdj

jkqfha"

1' Bacillus thuringiensis 2' Ervivnia uredovora

3' Agrobacterium glutomicum 4' Escherichia coli

5' Corynebacterium glutanicum

04' Methanobacterium sp iy Bacillus thuringiensis hk laIqø Ôùka fhdod .kakd l¾udka; ms<sfj,ska

±lafjkafka"

1' Ôj jdhq iy ffcj lDñkdYl 2' fhda.Ü iy Öia

3' ffcj m%;sl¾uKh iy ó lsß 4' ìh¾ iy jhska

5' ffcj lDñkdYl iy fyda¾fudak

05' my; m%ldY w;ßka i;H j.ka;sh$j.ka;s jkafka"

a - fm%daàk j, ;ekqï tAllh α weuhsfkda wï,hhs'

b - ,smsv ;ekS we;af;a .a,hsfldacka j,sks'

c - ,elafgdaia iE§ we;af;a ,elaála wï, j,sks'

1' a 2' b 3' c 4' a yd b 5' b yd c

MCQ

Paper16

;dËKfõ§kaf.a

Science for Technology

G . C . E . A D V A N C E D L E V E L

01ud,l m%sho¾Yk

REVISION2021For G.C.E. ADVANCED LEVEL

06' wdydr fldgila f.k tA i`oyd my; mÍËd isÿ l< úg ,efnk ksÍËK wkqj ks.ukh l<

yelafla tu wdydrfha"

mÍËdj ksÍËKh

fnkäla mÍËdj .fvd,a r;= wjlafIamh ,enqKs'

NaOH + CusSO ødjKh ks,a mdgg yqre oï meyeh fkd,enqKs'4

1' msIagh muKla we;s njhs' 2' ir, iSks iy fm%daàk we;s njhs'

3' fm%aàk we;s njhs' 4' ir, iSks muKla we;s njhs'

5' fm%daàk we;s uq;aa ,smsv ke;s njhs'

07' t;s,Ska ^C H & jdhqj 14 g oykh ùfï§ ckkh jk ;dm m%udKh 805 kJ fõ' C H oykh i`oyd 2 4 2 4

;=,s; m%;sls%hdj my; ±lafõ' ̂C - 12 H - 1&

C H + 3O → 2CO + 2H2 4(g) 2(g) 2(g) 2(g)

oykh i`oyd m%;sls%hd ;dmh úh yelafla"

1' - 33 kJ 2' - 805 kJ 3' 3220 kJ

4' 1610 kJ 5' - 28 kJ

08' 3A + 4B → 2D

by; m%;sls%hdjg wo< m%;sls%hd iS>%;djh i`oyd ksjerÈ iïnkaOh jkafka"

1' R = 2' R = 3' R =

4' R = - 5' R =

09' P, Q, R, S f,i kï l< me;a;l È. 4 cm jQ iup;=ri%dldr fld,hl úl¾Kh PR fõ' tys P yd R

YS¾I iam¾Y jk f,i nghla wdldrfha jia;=jla idod we;' P yd R hd lrk f¾Ldj ks¾ñ; jia;=fõ

úYalïNh jkqfha"

1' √32 2' 3' 4' 5'

10' flala wdlD;shl rEm igykla my; fmkajd we;' th my; kï

lr we;s mßÈ j¾K .kajd we;akï" frdai meye;s fldgfia

j¾.M,h jkafka"

1' 5π 2' 15 π

3' 20 π 4' 25π

5' 10 π

11' ñ,sógr j,ska l%udxlkh lrk ,o uhsfl%daógrhla my; ±lafõ' bial=remamqfõ wka;rd,h 1 mm

jk w;r jD;a;dldr mßudKh fldgia 100 lg fnod we;' mdGdxlh jkafka"

1' 5.26 mm 2' 7.28 mm

3' 7.32 mm 4' 5.28 mm

5' 6.32 mm

Science for Technology

G . C . E . A D V A N C E D L E V E L

02ud,l m%sho¾Yk

∆ [A]

∆ t

[D]

∆ t1

2

[A]

∆ t1

3

[B]

∆ t1

4

[D]

∆ t1

2

32

π

2√2

π

π

√324√2

π

2cm

7cm

0300

frdai

;eô,s

iqÿ

0 5mm 30

25

12' kd .il Wi h jk w;r tys mduq, isg 20 m ÿßka msysá f.dvke.s,a,l A uqÿfka isg ksÍËKh l< 0 0

úg kd .fia B uqÿk fmfkk wdfrdayK fldaKh 45 o" tys mduq, fmfkk wjfrdayK fldaKh 30

fõ kï kd .fia h Wi jkqfha"

1' m 2' 40 m 3' 20 (1 + ) m 4' 20 m 5' m

13' m%Odk mßudKh 0.5 mm j,ska fnod we;s w;r thska f;dgia 49 la iudk fldgia 50 lg fn§fuka

jZksh¾ mßudKh idod we;' fuys l=vdu ñkqu jkafka"

1' 0.05 mm 2' 0.01 cm 3' 0.02 mm 4' 0.05 cm 5' 0.01 mm

14' m yd m ialkaO 2 la ms<sfj,ska F yd F n, foll ls%hdldÍ;ajh hgf;a ksYap,;djfha isg .uka 1 2 1 2

wrNd iudk ÿrl § iudk .uH;d ,nd .kS' F $F wkqmd;h jkqfha" 1 2

1' 2' 3' 4' 5' 1

15' joka ieliqfï § Portrait fyda Landscape u.ska msgqjl '''''''''''''''''''' olajhs'

1' m%udKh Size 2' msßie,iqu Layout 3' ÈYdk;sh Orientation

4' wl=re j¾.h Font type 5' iSud ;sr Margins

01' rEmfha fmkajd we;af;a f,day is,skavrhl úYalïNh uekSug iSreudre lrk ,o jZksh¾

le,smrhls' jZkshrh úYd, lr fjku fmkajd we;'

^i& fuu jZkshrfha fldgia 10 la m%Odk mßudKfha 9 mm iu`. iumd; fõ kï is,skavrfha

úYalïNh f,i ,efnk mdGdxlh l=ula o@

^ii& jvd ksjerÈ ñkqï WmlrKhl jZkshrfha fldgia 50 la m%Odk mßudKfha w¾O ñ,s óg¾ 99 la

iu`. iumd; fõ' fuu WmlrKfha l=vdu ñkqu fldmuK o@

^iii&

rEmfha fmkajd we;s j¾kshr le,smrfhka is,skavrh bj;a lr tys ykq iïmQ¾Kfhka u jeiQ

úg jZkshrfha Y=kH m%Odk mßudKfha Y=kH iu`. iumd; fkdfõ' fuh rEmfha fmkajd we;'

fuu rEmfha uQ,dxl jrola we;ehs ie,fla' fuu uQ,dxl jrfoa w.h fldmuK o@ fuu jro

ie,ls,a,g f.k is,skavrfha úYalïNh i`oyd ksjerÈ lrk ,o w.h l=ula o@

40

√3

1

√3

10

√3

2m1

2m2

m2

m1

2m2

2m1

m1

m2

STRUCTURE

0

0 10

Science for Technology

G . C . E . A D V A N C E D L E V E L

03ud,l m%sho¾Yk

0

0 10

^iv& iuyr le,smrj, j¾kshrfha Y=kH m%Odk mßudKfha Y=khhg msgqmiska msysàfuka uQ,dxl

jrola we;s fõ' tjeks wjia:djla rEmfha ±lafõ' fuu le,smrfha uQ,dxl jro .Kkh

lrkak'

^v& le,smrfha C uqßÉÑfhka flfrk ld¾hh l=ula o@

^vi& le,smrfha D f,i ,l=Kq lr we;s wNHka;r ykq foflka flfrk ld¾hh l=ula o@

^vii& ksIamdolhdf.a w;afmdf;a fmkajd we;s wdldrhg lïìhl úIalïNh 0.18 mm fõ' fuu

w.fha ksjerÈ;djh fiùu i`oyd fuu m%Yakfha m%:u rEmfha § we;s le,smrh Ndú;d l<

fkdyels h' fuhg fya;= olajkak'

01' rEmfha fmkajd we;s mßÈ X ñksfil= úiska B ,S fmÜáhlg .eg .id we;s R ;sria ,Kqjla u`.ska r¿

;sria mDIaGhla Èf.a fmÜáh wÈkq ,nhs'

^i& B fmÜáh yd R ,Kqj u; ls%hd lrk ;sria

n, my; fmkajd we;s rEmj, ,l=Kq

lrkak'

a. ,Kqfõ wdk;sn,h

b. fmÜáh u; ls%hdlrk >¾IK n,h

^ii& ñksid úiska n,hla fhdod ,Kqj wÈk úg o

fmÜáh ;jÿrgla ksi,j mj;S' fï wjia:dfõ §

mDIaGh u`.ska fmÜáh u; we;s lrk >¾IK

n,h fldmuK o@

^iii& a. ñsksid úiska ,Kqj 150 N n,hlska wÈk úg fmÜáh p,s; ùug wdikak;u wjia:dfõ

mj;S' fï fudfydf;a § ,Kqj u.ska fmÜáh u; fhfok n,h fldmuK o@

b. fmÜáfha ialkaOh 50 kg kï" fmÜáh yd mDIaGh w;r iaÓ;sl >¾IK ix.=Klh .Kkh

lrkak'

-2 ^iv& ñksid úiska fhdok n,h 200 N olajd jeä l< úg fmÜáh yd ,Kqj 2 ms ksh;

;ajrKhlska p,kh ùu wdrïN fjhs'

a. fï wjia:dfõ § mDIaGh u.ska fmÜáh u; we;slrk >¾IK n,h .Kkh lrkak'

b. mDIaGh iy fmÜáh w;r .;sl >¾IK ix.=Klh ks¾Kh lrkak'

c. ndysr n,h yd >¾IK n,h fjkiaùu w;r m%ia;drhla we`o olajkak'

ESSAY

X

B R

BR

Science for Technology

G . C . E . A D V A N C E D L E V E L

04ud,l m%sho¾Yk

Ru-One Creation - MP 2020 Rev. Paper/Voyager 16 - 2019/12/05