CONFIDENTIAL *

JABATAN PET,A.IARAN JOHORJABATAN PELAJAMN JOHOR.IABATAN PEI.A.IARAN.IOHOR.IABATAN

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#',1nX ;Y,YjY,f,fif,3X'j'Ai pHys r cs i'1',1ni,',Y#jy,f,i"i$f!^'Jf^Y,JABATAN PELAJAMN JOHORJABATnT pH, n .a*a^, ,, ,-,utJABATAN PELAJARAN JoHoRJABATANJABATAN PELAJAMN JOHORJABATAA DAplpp { )RJABATAN PELAJAMN JOHORJABATANJABATAN PELAJAMN JOHORJABATAA

. NI I.I . )RJABATAN PELAJAMN J)H)RJABATAN

JABATAN PELAJAMN JOHORJABATAN PELAJAMN JOHOR JABATAN PEI-/IJAMN JOHORJABATANJA BATA N P ELAJA M N JO HOR JA BATA N P ELAJA MN JOHOR JA BA TA N P ELA JA M N J O H OR JA BA TA N

MULTIPLE - CHOICE

One hour and forty-five minutesj

11: Hours)-4

Instructions to candidatss:DO NOT OPEN TIIIS BOOKLET T]NTIL YOU ARE TOLD TO DO SO.

There are frfty questions in this paper. For each question, four suggested an-swers are given. Chaose one correct arr^vwer and indicate it on the multiple-choice answer sheet provided.

Read the instructiotrs on the multiple-choice answer sheet very carefully.Answer all questions. Marlcs will not be deductedfor wrong ewrwers.

This question paper consists of 30 printed pages and 2 blank page.

*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

CONF'IDENTIAL *

t lf u and v, x andy, t and a represent speeds, distances , time and accelerationrespectively. which ofthe following equations is dimensionally incorrect?'

A xt iy ' : r l t2B v'- it' : acC v: at.+ y/t

nd: (x + y)/t

2 The acceleration of a free falling object can be determined by a photoelectric experi-ment as follows. The object is released at point P and passing through point X and pointY at time t,and t, respectively.

Releasing point

p

Photo cell

Photo cell

Earth's surface

The acceleration of free falling object is

zh(t, -ty)

haa

t; -t;

h2

A

C- t r )

t i ,-t i

960/1+This question paper is CONFIDENTIAL until the examination is over

(t,

2h

CONFTDENTIAL*

CONFIDENTIAL *

l. Jik z dan v, x dan y, t dan a mewakili laju, jarak , masa dan pecutan masing-masing. Antarapersamaan berikut ,yang manakah tidak benar dari segi dimensinya ?

A x2+tf :uvtzB v2-u2:aJc

c v=at+y/tD tl;-: k + i/t

2 Pecutan sesuatu objek yangjatuh bebas boleh ditentukan oleh eksperimen fotoelektrik sepertidi bawatr. Objek itu dilepaskan pada titik P dan melalui titik X dan titik Y pada masa tr danf, masing-masing.

R titik lepas

pSinar cahaya P Sel foto

p Sel fotoSinar cahaya

Permukaan bumi

Pecutan objekjatuh bebas ialah

A 2h(t, -ty)

hB-.-r

t; -t;

, )n-(-(t, _t,)

2hD)r

t ; - t ;

96011*This question paper is CONFIDENTIAL untilthe examination is over CONFIDENTIAL*

CONF'IDENTIAL *

3 The gaph below shows how force F which ac[s on an object changes with time l.

F

6

4

2

If the object moves in a straight line, calculate the change in linear momentum of theobject.

A 15kgms' lB 45kgms- 'C 65kgms- 'D 70 kgm s-'

4 The figure shows a rod pivoted at point P on a smooth horizontal surface.

.sl{

Two forces each of magnitude 5.0 N acting in opposite directions are applied at thetwo ends of the rod. The resultant torque on the rod is

A 2.5Nm

B l2.5Nm

C 2l .7Nm

5 Two objects of mass m1 and m2 have the same kinetic energy. If the momentum ofthe two objects are p and pzrespectively , then the ratiopl :;2 equals the ratio of

A mt:mz

B mz:ml

J*',J*,Jrk , J^,

s- l

I

I $.sli

h{-- a*$III

D 25.0 Nm

C

D

960t1*This question paper is CONFIDENTIAL untit the examination is over CONFIDENTIAL*

CONFIDENTIAL *

Graf di bawah menunjukkan bagaimana daya F yangbertindak pada satu objek berubahdengan masa.

6

4-

2

o s io 'rs '20 -r (s)

Jika objek itu berubah dalam garis lurus, kirakan perubahan dalam momentum linear objek.

A l5kgms-lB 45 kgms- 'C 65kgms-lD 70kgms-r

Rajah di bawah menunjukkan satu rod dipangsi pada titik P atas permukaan licin yangmendatar.

I

5.Sil

Dua daya bermagnitud 5.0 N setiap satu bertindakdalam arah bertentangan diaplikasi da-lam dua hujungnya. Tork paduan pada rod ialalr

A 2.5Nm B l2.5Nm C 2l .7Nm D 25.0Nm

5 Dua objek berjisim mass mt dan m2 mefipunyi tenaga kinetik yang sama. Jika momen-tum kepada dua objek itu ialahpl dan p2masing-masing, maka nisbah pr : pz adalah ber-samaan dengan nisbah

A mt:mz

B mz:ml

c J^, rJ*,D ,l*, , J,\

960/l*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

1+t$ErIII

CONFIDENTIAL *

6 The figure below shows a particle moving in a circle with a constant speed 3.0 m s-'The centripetal force is 100 N. The diameter XY of the circle is 2.0 m.

The work done when the particle has moved through a semicircle XPY is

A OJ B 3OOJ c 3l4J D 628t

.1 2l_3AT Bt ct DT

8 An ice skater is rotating with his arms folding inwards. Later the ice skater stretcheshis arms outwards. Which ofthe following pairs of quantities will increase ?

A Period of rotation and moment of inertia.B Kinetic energy and moment of inertia.C Angular momentum and period of revolution.D Angular momentum and kinetic energy.

9 A sphere rolls along a straight horizontal platform without sliding as shown in thefigure below.

If the centre of mass O of the sphere moves with velocity v m s-l relative to the plat-form, then the velocity of the point Q on the surface of the sphere relative to theplatform is

A tn Bv

960t1*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

6

7 Two rigid bodies P and Q are rotating about the same fixed axis and have angular ve-locities ar" and con, and angular momentumZ,, and Lo respectively. If the values of

the ratio ez

a16 ! ur" l:2 and2:3 respectively, find the value ofoe La

C2v D3v

kinetic enerry of object Pkinetic enerry of object Q

CONFIDENTIAL *

Rajah di bawah menunjukkan satu zzrah bergerak dalam bulatan dengan laju malar 3.0 m s-lDaya memusatnya ialah 100 N. Diameter XY bagi bulatan itu ialah 2.0 m.

Keda yang dilakukan apabila zarah itu digerakkan melalui semibulatan XPY ialah

A 0J B 300J C 3t4J D 628J

7 Dua jasad tegar P dan Q berputar pada paksi tetap yang sama mempunyai halaju sudutdan roq, dengan sudut momentum zp dan zq masing-masing. Jika nilai nisbah 3 d*

ter4gekinetik obielrF rog

iaah 1 :2 dan 2:3 rmasing-masing kirakan nilui ,_-Gffiffi.

8 Seorang peluncur ais sedang berputar dengan lengannya melipat ke dalam.Kemudian dia me-regangkan lengannya keluar. Antara pasangan kuantiti berikut , yang manakah akan bertambah ?

A Tempoh putaran dan momen inersia.B Tenaga kinetic dan momen inersia.C Sudut momentum dan tempoh putaran.D Sudut momentum dan tenaga kinetik.

9 Satu sfera bergolek sepanjang satu landasan lurus yang mendatar tanpa tergelincir seperti ter-tunjuk dalam rajah di bawah.

(r)p&g

r4

B+A+ D+c+J

Jika pusat jism O bagi sfera bergerak dengan halaju v ms -l relatif kepada landasan.,makahalaju titik Q pada permukan sfera relatif kepada landasan ialah

A|, Bv C2vD3v

960/l*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

CONFIDENTIAL *

10 The escape velocity (that is the minimum velocity for an object to escape to infinityfrom the Earth) for an oxygen molecule from the surface of the Earth is l.l x 10" m s-'.What is the escape velocity at a height of 0.2.Rs above the surface of the Earth, where Rsis the radius of the Earth ?

A 0.5 x lOa m s-rB 1.0 x lOa m s-rC l .J x lOam s-rD l.J x 104 m s-l

11 An object moves with simple harmonic motion. Which of the following graphsshows the correct variation of velocity with displacement of the object ?

V e lo- c i ty

D isplacem ent

isplacem ent D isplacem ent

12 The figure below shows a torsional pendulum which performs simple harmonic mo-tion with angular displacement d.

lf / is the moment of inertia of the disc about the torsional wire and c is the torque perunit angular displacement acted by the torsional wire to the disc, the period of oscillationof the disc can be expressed as

2n B2r C2n D2n

960t1*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

D

A

isplacem e nt

I

"e

IEc

c

0

CONFIDENTIAL *

10 Halaju lepas (iaitu halaju minima untuk suatu objek lepas ke infiniti dari Bumi) untuk salumolekul oksigen dari permukaan Bumi ialah l.l x lOa m s-r. Apakah halaju lepas pada ke-tinggian 0.2RE di atas permukaan Bumi, di mana Rs ialah jejari Bumi ?

A 0.J x lOa m s-'B 1.0 x 104 m s-lC l .J x lOa m s-rD l .px 10am s- l

ll Satu objek bergerak dalam gerakan harmonik mudah. Di antara graf berikut ,lan1manakahmenunjukkan perubahan halaju dan sesaran dengan betal ?

halaju

, halaju

12 Rajah di bawah menunjukkan satu pendulum kilas yarig memaparkan gerakan harmonik mu-dah dengan sudut momentum d.

Cakera

Jika / ialah momen inersia cakera pada wayar kilas dan c ialah kilas per unit sudut sesaranditindak oleh wayar kilas pada caker4 tempoh putaran cakera boteh diungkapkan sebagai

960/l*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

CONFIDENTIAL *

13 Which of the following statements is true conceming an object undergoes simpleharmonic motion in a straight line between two points X and Y?

A Speed is minimum at the middle of the line XY.B The total energy is maximum at X or Y.C The magnitude of the restoring force is maximum at X or Y.D The magnitude of the linear momentum is maximum at X or Y.

14 A progressive wave is represented by the equation

/ = 0.20sin (r00il -+) ,with x and y aremeasured in-meter, and r is measured in second. What is the speed of

the wave?

A 20ms-rB 50msrC 100 m s-rD 200 m s-l

15 Which of the following statements is not true conceming transverse wave?

A Transverse wave can be polarized.B y-ray and radio wave are transverse wave.C Transverse wave is produced when air is blown across the end of a re-

sonance tube.D Transverse wave is produced when a stretched string vibrates.

16 The length of a pipe which is opened at both ends is 35.5 cm. If the sound speed is330 m s-r and the end conection for each end of the pipe is 1.0 cm, what is the funda-mental frequency of the pipe?

A 440H2 B 452H2 C 465H2 D 478H2

17 A source emits sound of frequency 500 Hz is fixed to the end of a rod of 0.5 m long.The rod is rotated in a horizontal circle with angular velocity 50 rad s-r. What is themaximum frequency received by a stationary observer? [The velocity of sound in air :

340 m s-r. l

A 500 Hz B 537 Hz C 540H2 D 579 Hz

960t1*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

l0

CONFIDENTIAL *

13 Antara pemyataan berikut yang manakah adalah benar tentang suatu objek mengalami gera-kan harmonik mudah dalam satu garislurus di antaradua titik x aan yr

A Laju adalah minima padatengah garis Xy.B Jumlah tenaga adalah maksima pada X atau y.C Magnitud daya memulih adalah maksima pada X atau y.D Magnitud momentum linear adalah maksima pada X atau y.

14 Satu gelombang progresif diwakili oleh persamaany - G-ztkie(1ffirt-f,} ,

dengan x dan y diukur dalam meter, dan t diukur dalam saat. Apakah jau gelombang itu ?

A 20ms'rB 50ms-lC l00ms-rD 200 m s-r

15 Antara pemyataan berikut, yang manakah tidak benar tentang gelombang melintang ?

A Gelombang melintang boleh disatahkutubkan.B Sinar-y dan gelomba:rg radio adalah gelombang melintang.C Gelombang melintang dihasilkan apabila udara ditiup melalui tiub resonans.

D Gelombang melintang dihasilkan apabila benang bergetar diregang..

t6-,P.unl?*q paip dengan kedua-dua hujungnya dibuka ialah 35.5 cm. Jika laju bunyi ialah 330ms-' dan hujung ralat untuk setiap hujung paip itu ialah 1.0 cm, apakah frekuensi asas paip itu t

A 440H2 B 452H2 C 465H2 D 47tHz

t7 Satu sumber memancarkan bunyi berfrekuensi 500 Hz ditetapkan pada hujung sebatang rodyang qutjanryy,u 9.5 m. Rod itu diputarkan dalam bulatan mendatar dengin halaju sudut 50ryd s -' . Apakah frekuensi maksirna yang diterima oleh pemerhati pegun-? tHalaju bunyi da-lam udara::340 m sr. l

A 500 Hz B 537 Hz C 54A Hz D 579 Hz

96All*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

l l

CONFIDENTIAL *

18 The graph below shows the variation of potential energy (J for an diatomic atom withinteratomic separation r.

which of the following is not a correct deduction from the graph above?

A At absolute zerc,the atomic separation is ro.B For small displacement from the position of r: ro, atoms vi-

brate with simple harmonic motion.

C The positive gradient shows that atoms repel each other for r >ro.

n If a quantity of heat Uo is supplied, the atomic bond will bebroken.

19 A mass of 2.0 kg is tied to the end of a steel wire which has an original length of I .0m, and the other end of the wire is fixed at point O. Later the mass is rotated about O in avertical plane with constant angular speed of 4zr rad s -l . If the cross-sectional area ofthe wire is assumed constant with a value of 1.0 mm2, what is the minimum extensionproduced by the steel wire?[Young's modulus of steel :2.0 x 10ll Pa 1

A 0.40 mm B 0.50 mrn C 1.48 mm D 1.58 mm

20 The figure below shows the relationship between the average translational kineticenergy Ey of a monoatomic molecule of an ideal gas at absolute temperature z.

A value for Boltzmann constant can be deduced from the graph above is

960/1*This quesfion paper is CONFIDENTIAL untilthe examination is over CONFIDENTIAL*

l2

4

0Ab

laD3b

2aCb

aB3b

CONFIDENTIAL *

18 Graf di bawah menunjukkan perubahan tnnagakeupayaan Uuntuk satu dwiatom dengan se-fang di wfiaraatom r.

Antara berikut, yang manakah bukan deduksi yang benar dari graf di atas.?

A Pada sifar mutlak,selang antara atom ialah ro.

_ Untuk sesaran kecil dari kedudukan r: ro, atom-atom berge-B tar dengan gerakan harmonik mudah.

Kecerunan positif menunjukkan atom-atom menolak antaraC satu sama liin untuk r >r,.

D Jika kuantiti habat Uo dibekalkan, ikatan atom akan terputus.

19 Satu jasad berjisim 2.0 kg diikat pada hujung seutas wayar keluli berpanjang asal 1.0 m, Hu-jung wayar itu yang satu lagi ditetapkan pada titik O. Jasad itu kemudiannya diputar pada O da-lan satah tegak dengan laju^ sudut malar 4m rad s -r . Jika luas keratan rentas wayar itu dianggapmalar dengan nilai 1.0 mm2, Apakah.pemanjangan minima yang dihasilkan oleh wayar keluli itu? [keluli modulus Young =2.0 x l0'r Pa ]

A 0.40 mm B 0.50 mm C 1.48 mm D 1"58 mm

20 Rajah di bawah menunjukkan hubungan di antara purata translasi tenaga kinetic I'1 bagi mo-likul monoatomik seseuatu gas ideal pada suhu mutlak l'.

Nilai pemalar tsoltznnann yang dideduksikan dari graf di atas ialah

964t1*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

l3

/7

f , rb/,a

D3bCbg

B3b

CONFIDENTIAL *

21 The principal molar heat capacitv at constant pressure Cp,, for an ideal ga, i, ZR

The degrees of freedom for the gas molecules is

A3 B4 C 5 D6

22 The figure below represents the variation of internal energy U with temperaturewhen 5 moles of an ideal gas is heated at constant volume.

o TtK

what is the value of the molar heat capacity of the gas at constant volume?

l4

UIJ

Bgb

.aA.5 Dab

2CA

5b

23 A monoatomic gas with volume Zand pressurep is compressed isothermally until itspressure becomes 3p. The gaslater is allowed to expand adiabfiically until its volume

becomes gV.lf y of the gas is I , what is the final pressure of the gas?J

Dp8t

24 Two uniform copper rods R and S are joined and perfectly insulated as shown in thefigure below. The length of rod R is twice the length of rod S but the cross-sectional areaof rod R is half the cross-sectional areaof rod S.

50 co

If the free ends of rod R and rod S are rnaintained at temperatures 100 oC and 50 oCrespectively, what is the temperature at the junction of rod R and rod S ?

A 6OOC B 67OC C 75OC D 9OOC

96Atl*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

cp9

Bp-'

CONFIDENTIAL *

2l Prinsipal muatan haba molar pada tekanan malu co.^untuk satu gas ideal iahh ] #.Kebebasan darjah untuk molikul gas ialah

A 3 B 4 C 5 D6

22 RaJah di bawah mewakili perubahan tenagadalaman (I dengansuhu Z apabila 5 mol suatugas ideal dipanaskan pada isipadu malar.

0 r lK

Apakah nilai muatan haba molar sesuatu gas pada isipadu malar ?

23 Satu gas monoatomik pada isipadu Y dan tekanan p dimampatkan secara isoterma sehinggatekanan menjadi 3p. Gas itu kemudiannya dibenarkan mengernbang secara adiabatik sehinggaisipadunya menjadi gv. Jika y bagi gas itu ialah l, apakah tekanan akhir bagi gas itu ?

APB+c!-DP39-81

24 Dua rod kuprum seragam R dan S digabung dan ditebatkan sempumaseperti rajah di bawah.Panjang rod R adalah dua kali panjang rod S tetapi luas keratan rentas bagi rod R adalah separuhdaripada luas keratan rentas rod S.

ditebat

Jika hujung bebas rod R dan rod S dikekalkakri pada suhu 100 oC dan 50 oC rnasins-masing, apakah suhu pada simpang rod R dan rod S ?

A 60r B 67,C C 75.C D gO"c

96011tThis question paper is CONFIDENTIAL untilthe examination is over CONFIDENTIAL*

l5

g

B&fl

AF Dc&7-

&csb

CONFIDENTIAL *

-lpC +2 pC: +3 pC

The resultant force acting on S due to R and T is

A l1 N towards TB l5 N towards TC l5 N towards RD 105 N towards R

26 The figure below shows a positive plate and a negative plate which are parallel. One

electron is released near the negative plate.

25 Three point charges -l pc, +21tc, and +3pc are placed on a straight line respectively

as shown in the figure below.

,<2cm-)<-3 cm-)R $ TI

t6

A

Bc

Which of the following is true concerning the force F acting on the electron and the

kinetic energy Er of thi electron along itsmotion from the negative plate to the posi-

tive plate?

FA IncreasesB IncreasesC ConstantD Constant

EuIncreasesConstantConstantIncreases

27 Two identical metal solid spheres X and Y which are charged positively with gr and

ez (er > e2\ respectively. Wtrictr of the following statements is true conceming sphere

X and sphere Y?

The electric field intensities on the surface of sphere X and sphere Y are

7fr0.

The electric field intensities inside sphere X and sphere Y are zero.

The electric field intensity inside sphere X is more than the electric field

intensitY inside sPhere Y.D The electric potentials inside sphere X and sphere Y are zero.

28 Which of the following statements concerning an isolated charge conductor which is

stationary and non-uniform in shape is not true?

A The surface charge density of the conductor is uniform'

B The charge ofthJ conductor only resides on the surface ofthe conductor.

C There is no electric field inside the conductor'D There is no magnetic field surrounding the conductor'

960/l+This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

CONFIDENTIAL *

i€2 cm-9;q--3 cm--)R E Ti

- lpC +zWC +3pC

Daya paduan yang bertindak pada S disebabkan R dan T ialah

A l lNmenujuTB 15 N menuju TC 15 N menuju RD 105 N menuju R

26 Rajah di bawah menunjukkan plat positif dan plat negatif adalah selari. Satu electron dile-paskan dekat plat negatif.

17

25 Tiga cas titik -lpc,-+2pC,-dan +3pC ditemp atkan padasatu garislurus masin-masing sepertiditunjukkan pada rajah di bawah.

tnara berikut yang manakah adalah benar berhubung daya F yang bertindak pada elektrondan tenaga kinetic elektron E1 sepanjang pergerakannya dari piat i'egatif ke plat positif ?

A Bertambah BertambahB Bertambah MalarC Malar MalarD Malar Bertambah

?7 D"flogam sfera pepejal yang serupa X dan y dicaskan positif dengan er dan ez(Qt> .Q) -masing-masing.

Di antara pemyataan berikut, yang manakah-analfr'oenaiientangsfe-ra X dan sfera Y?

A Keamatan medan elektrik pada permukaan sfera X dan sfera Y adala sifar.B Keamatan medan elektrik dalam sfera X dan sfera y adalah sifar.C Keamatan medan elektrik dalam sfera X adalah lebih besar d anpadakeamatan

medan elektrik dalam sfera y.D Keupayaan elekfik dalam sfera X dan sfera y adalah sifar.

28 Antara pernyataan beriku! yang manakah tidak benar tentang suatu konduktor bercas ter-pencil yang pegun dan tidak seragam bentuknya ?

-

A Ketumpatan cas pada permukaan konduktor adalah seragam.B Cas konduktorhanya menduduki permukaan konduktor.C Tiada medan elektrik dalam konduktor.D Tiada medan magnet di sekeliling konduktor.

960/l+This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

Eu

CONFIDENTIAL *

29 A 100 pF capacitor is charged and later the charge acquired is discharged through a

I0 ko resistor. what is the value of the ratio charge of capacitor after I s ,initial charge of capacitor

A2 B ln2 C | - ln2

30 A capacitor of 5 pF and a capacitor of 10 pF are connected in series with a battery ofl2 V. What is the charge at each of the capacitor?

l8

Dle

5uF

A I0pFB 20pFC 40pFD 40pF

l0 uF

20 grF40 pF20 pF40 pF

31 When potential difference Z is applied across the ends of a copper wire which has adiameter d and length /, the drift velocity of electrons in the wire is v. What is the drift

velocity of the electrons, in terms of v, in a copper wire which has diametr, {unaL

Ilength i, and is applied with potential difference2V across its ends?

4

B2v C4v D8v

32 If the order of magnitudes for current density and number of free electrons per unitvolume in a metal ar" 1-0u A m-2 and 1028 m-3 respectively, what is the order of magnitudefor the drift velocity of free electrons in the metal?

A 104 m s-rB 102 m s-lC 10-2 m s-rD lOams-r

33 In the circuit as shown in the figure below, the resistance of the voltmeter is 500 O .

A

What is the reading of the voltmeter?

A 2.5V B 3.3V C 5.0V D 6.0V

960tr*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

CONFIDENTIAL * 19

29 Satu kapasitor 100 pF dicaskan dan kemudiannya dinyahcaskan melalui satu perintang

lokfl . Apakah nilai nisbah cas kapasitgr selepas I s ,

cas awal kapasitor

A2 B ln2 C 1- ln2

30 Kapasitor 5 pF dan kapasitor t0 pF disambung secara siri dengan bateri l2 V. Berapakahcas pada setiap kapasitor?

D1e

58.A IOpFB 20pFC 4ApFD 40pF

10 pF

20 pF40 pF20 pF40 pF

3l Apabila beza keupayaan V dikenakan merentas hujung-hujung satu dawai kuprumyang mempunyai garis pusat ddan panjang /, halaju hanyut elektron dalam dawai itu ia-lah v. Berapakah halaju hanyut elektron, dalam sebutan v, dalam satu dawai kuprum yang

drmempunyai garis pusat 2 dan panjang T , dan yang dikenakanbezakeupayaan 2V me-rentas hujung-hujungnya ?

B2v C4v D8v

32 Jika tertib-tertib magnitud bagi ketumpatan arus dan bilangan elektron bebas per isi-padu unit dalam satu logam masing-masing ialah 106 A m-2 dan 1028 m-3 , berapakah ter-tib magnitud bagi halaju hanyut elektron bebas dalam logam itu ?

A lOa m s-rB 102 m s-rC 10-2 m s-rD 104 m s-l

33 Dalam litar yang ditunjukkan dalam gambar rajah di bawah, rintangan voltmeter ia-lah 500 I t .

Berapakah bacaan yang ditunjukkan oleh voltmeter ?A 2.5V B 3.3V C 5.OV D 6.0V

96011*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

CONFIDENTIAL *

34 In .a circuit as shown in the figure below, cell Er has e.m.f. of 2.0 V and internal re-sistance which can be neglected. The length of the potentiometer wire AB is 100 cm andwhen switch S is opened, the balance length AX is 75 cm. When switch S is closed,length AX is 60 cm.

What is the internal resistance of cell .E'' ?

A 0.75 c) B 1.00 o c t.25 ct D 3.00 C)

35 An electron moves in a straight line in vacuum where there is a magnetic field and anelectric field acting perpendicular to each other. If the electric field is removed, the elec-tron willmove with

A same speed in a circle.B same speed in a parabola.C same speed in a straight line.D a lower speed in a circle.

36 The magnetic field of Earth aJ the csntre of a conductor circular coil of radius 5.0 crnis 7.0 x l0-' T. The direction of the Earth's magnetic field is perpendicular to the plane ofthe coil. This magnetic field is cancelled by the magnetic field produced at the centre ofthe coilwhen a current flows in the coil. What is the magnitude cf the current flow?

A O.9A E 1.44 C I .8A D 5.6A

37 When a constant current flows in a moving coil gah,anometer, the coil wi!! bedeflected by a constant torque because

A the coil is wound round a soft iron core.B the coil undergoes criticai damping.C the coil is piaced in a radial magnetic field.D the coil is controlled by a helical spring.

20

i

ljI

1

38 The rnagnetic flux density in a sclenoii which has 400 turns and unifonn cross*sect ionalarea 1x l0-amtis5 x 10-5 Tw'henthesolenoidcarr iesacurrentof 2A. { f themagnetie flux density of the solenoid is assumed uniform, what is the self-inductance ofthe solen*id?

A 0.5 pH B 1.0 pH C 2.0 pH D 2.5 1tH

964t1*This question paper is CONFIDENTIAL until the examination is over CONFIDBNTIAL*

CONFIDENTIAL *

A, 0.5 pH B 1.0 pH C 2.01tH D 2.5 pH

960/l*This question paper is CONFIDENTIAL untilthe examination is over CONFIDENTIAL*

2l

34 palam litar yang ditunjukkan dalam gambar rajah di bawah, sel E1 mempunyaid.g.e. 2.0 V dan rintangan dalam yang boleh diabaikan. Panjang dawai gelongsor AB ia-lah l-00_ cm dan apabila suis S dibuka, panjang keseimbangan aX iatatr 75 Jm. Apabilasuis S ditutup, panjang AX ialah 60 cm.

37 Apabila arus tetap mengalir melalui galvanometer gegelung bergerak, gegelung ituakan terpesong dengan tork malar kerana

A Cegelung itu rnengelilingi teras bers! lembut .B Gegelung ifu mengalami pelembapan kritikat.C Gegelung itu diletak dalam medan magnet jejarian.D Gegelung itu dikawal dengan spring heliks

38 Ketumpatan fluks magnet dalam solenoid yang mempunyai 400 pusingan dan berluas kera-t in rentas uniform 1x 10am'adalah5 x 10-5 Tapabi la 2Aarusmilalui sclenoidi tu.Jikaan-9Ik* ketrrmpatan fluks magnet solenoid itu adalah unifonn, Berapakah inductans diri soleno-id itu?

Berapakah rintangan dalam sel E2?

A 0.7s o B 1.00 c) c 1.25 a D 3.00 f)

35 Suatu elektron bergerak mengikut suatu garis lurus di dalam vakum di mana terda-pat medan magnet dan medan elektrik yang berserenjang di antarasatu dengan yang lain.Jika medan elektrik dimatikan, elektron itu akan bergerak dengan

A laju yang sama di dalam suatu bulatanB laju yang sama di dalam suatu parabolaC laju yang sama di dalam suatu garis lurusD laju yang lebih rendah di dalam suatu bulatan

36 Medan magnet Bumi di pusat satu gelung bulat pengkonduksiyang jejarinya 5.0 cmialah 7.A I i l0r T. Arah tindakan medan magnei Bumi adalat seren;ang dengan satahgelung itu. Medan ini dibatalkan oleh medan magnet yang terhasit ii pusat g"tungitu apabila satu arus tertentu mengalir dalam gelung iiu. Berapakah magnittr-cl arus itu2

A O.9A B I .4A C I.8A D 5.6A

CONFIDENTIAL *

39 A sinusoidal a.c. source with period Zis connected to a pure capacitor. Which of thefollowing graphs best represents the variation of energy per unit iime, P, stored in thecapacitor with time r in a complete oscillation?

htufuF^4F+

40 The figure below shows an operational amplifier with open loop voltage gain of 10'.

B

D

22

A

c

A

The voltage supplied is 9 V. lf Vt:0.50 mV and V2: 0.60 mV, what is the outputvoltage Vo?

9.0 v B 10.0 v c 19.0 vD

55.0

960t1*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

CONF'IDENTIAL *

39 Satu sumber a.u dengan tempoh T adalah disambung kepada satu kapacitor tulen. Mana-kah antara grapflgraf berikut mewakili perubahan tenaga per unit masa ,P yang simpan dalamkapasitor melawan masa dalam satu ayunan lengkap?

23

40 Gambar rajah di bawah-menunjukkan sebuah amplifier beroperasi dengan gandaanvoltan gelung terbukanya l0'.

Voltan bekalan ialah 9 V. Jika Vt:0.50 mV dan Vz= 0.60 mV, berapakah voltanoutput Zo ?

A 9.OV B 10.0 v c 19.0 v D 55.0 V

960/l*This question paper is CONFIDENTIAL until the exarnination is over CONFIDENTIAL*

CONFIDENTIAL *

4l Lens K1 and lens K2 have focal length 10 cm respectively. Which of the following arrange-ments of the lenses will cause parallel light ray incident at K1 becomes diverging after emergingfrom Kz ?

42 The figure below shows an air wedge formed by placing a thin piece of paper be-tween two thin glass plates at distance 8.0 cm from the line of contact of the glass. Mo-nochromatic light of wavelength 5.89 x l0-7 m is incident normally at the air wedge.

l t l t . . , .| | | l l iehtrhin.paper{ + t +

II

-[-B.ocm---al

If the separation between consecutive dark fringes is 1.5 mm, the thickness of thepaper is

A 0.79 x l0-s mB 1.57 x l0-5 mC 4.71x l0-5 mD 1.57 x lOa m

43 Which of the following characteristics will determine whether a wave is longitudinalwave or transverse wave?

A ReflectionB RefractionC DiffractionD Polarization

44 The optical path in a glass slide of thickness /o is /r. The refractive index of the glasscan be expressed as

24

c

--*fir\' "-*i n'-*1/\J *ll=|/

-{ i r \ ,Dft x*11=-,r,*u ql.--*-u

A? ch D+B*

960t1*This question paper is CONFIDENTIAL untilthe examination is over CONFIDENTIAL*

CONFIDENTIAL *

4l Kanta K1 dan kanta Kz mempunyai panjang fokus 10 cm masing-masing. Di antara susunankanta berikut ,yang manakah akan menyebabkan sinar cahaya selari yang menuju K1 mencapahselepas keluar dari Kz ?

25

KKz

4{*o

"{fic

Af B lotI!

Di*

'-*Ji r\'{=-"=-U

I.a - It

960t1*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

A Rajah di bawah menunjukkan selaput udara yang dibentuk dengan menempatkan lapisankertas tipis di antara dua plat kaca nipis pada jarak 8.0 cm dari garis sambungan kaca bertem-bung.Cahaya monokromatik dengan panjang gelombang 5.89 x l0-7 m ditujukan secara normalpada selaput udara itu.

Kaca nipis

Jika selang di antara jalur gelap berturutan ialah 1.5 mm, maka ketebalan kertas iatah

A 0.79 x l0-5 mB 1.57 x l0'5 mC 4.71 x l0-5 mD 1.57 x lOa m

Antara cirri-ciri berikut, yang manakah akan menentukan sesuatu gelombang itu adalah ge-lombang melintang atau gelombang mendatar ?

A PantulanB PembiasanC PembelauanD Pengutuban

Lintasan optik dalam slaid kaca dengan ketebalan /o ialah /r. Indeks biasan bagi kaca bolehdiungkapkan sebagai

43

CONFIDENTIAL *

45 In a Young's double-slit experiment, the two slits are radiated from the same lightsource of so that light emerged from the two slits have

A the same speedB the same pathC the same plane of polarizationD the same constant phase difference

46 Which of the following graphs best represents the X-ray spectrum produced by an X-ray tube at two different potential differences of Vu and Va (V^> V) ?

47 Which of the following is not the application of laser light?

A To detect submarine.B To cut metal.C To measure the distance between Ea.rth and Moon.D To perform eye and brain surgery.

96011*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

26

h

ao

Wavelength Wavelength

CONFIDENTIAL *

45 Dalam eksperimen dwicelah Young, dua slit dipancarkan dari sumber cahayayang sama su-paya cahayayang pancar keluar dari dua slit itu mempunyai

A laju yang sama.B lintasan yang samathe same path.C pengutuban satah yang sama.D bezafasa malaryang sama.

46 Antatagraf-graf berikut, yang manakah paling sesuai mewakili spectrum sinar- X yang di-hasilkan oleh satu tiub sinar-X pada dua beza keupayaanyang beilainan V^dan fr(f^> fo),l

47 Antara berikut, yang manakah bukan aplikasi cahaya laser ?

A Mengesan kapal selam.B Memotong logam.C Mengukur jarak di antara Bumi dan Bulan.D Menjalakan pembedahan mata dan otak.

96011*This question paper is CONFIDENTTAL untilthe examination is over CONFIDENTIAL*

27

A l

l l t rI i l6!

lu/4 Et t \ 6

l / / ' - \ , .Panjang gelombang

+lCt, tFI l l I a.

1,, , / \ El 'a l \ I, I \w

l / /n- . \ , -Panjang gelombang

P)

e,t4

trcl(|)v

Panjang gelombang

t rov^/\,l / / "N,

Panjang gelombang

CONFIDENTIAL *

48 The stability of a nucleus can be determined by using binding energy per nucleon asa measurement.

Binding energyper nucleon

MeV

l0

8

6

4

0 50 100 150200250Mass number

For the most stable nuctide, the quantity is

A maximum for the nuclide in the periodic table.B directly proportional to the ratio of proton/neutron.

(- increases uniformly according to the increase of massnumber in the periodic table.

D increases uniformly according to the increase of atomicnumber in the periodic table.

49 The radioisotopes of P and Q have half-lives Z1 and Tz respectively with Zr :2Tz .The number of nuclei of P and Q in a sample is the same initially. How long does it takefor the number of nuclei P becomes two times the number of nuclei Q ?

ATz B ZTt C 2Tz D 3Tr

50 A radioisotope of element Z experiences a series of decay until it becomes a stableisotope of element Z. In this process, the ratio of the number of p-particles emitted to thenumber of o-particles emitted is

A l : l B l :2 C l :4 D 2: l

960t1*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*

28

c(nftmTIAL*

I Xcrr$iht nukleus boleh ditentukan dengan menggunakan tenaga ikatan per unit nucleon*El pengukuran.

Tenaga ikatanper nukleon

MeV

l0

8

6

-4

2

u-238

s0 100 150 2a0250

Nombor jisim

Kuantiti untuk nuclei yang paling stabil ialah

A nuklei yang maksima dalam jadual berkala.B berkadarlansungkepadanisbah proton/neutron.

r bertambah seragam mengikut pertambahan nombor jisimdalam jadual be?kala.

n bertambah seragam mengikut pertambahan nombor atomu dalamjadual berkala.

49 Radioisotop P dan Q mempunyai separuh hayat T1 dan T2 masing-masing dengan T1=zT2. Nombor nuclei P dan Q dalam sampel adatah sama pada awalnya. Berapa lamakah diperlukanuntuk nombor nuklei P menjadi dua kali dua kali nombor nuclei Q ?

AT2B2TrC2TzD3Tt

50 Satu radioisotope dari unsur Z mengalami satu siri pereputan sehingga ia menjadi isotopstabil bagi unsure Z. Dalam proses ini, nisbah nombor z:lrah -P dipancarkan kepada nornborarah- cr dipancar ialah

A l : l B l :2 C l :4 D 2zl

gffitltThis grcsirr pryer is CONFIDENTIAL until the examination is over CONFIDENTIAL*

29

CONFIDENTIAL *

Spd of li$t in free sPace

Pcrmabilityof frasPaa

Pcrmittivity of fra sPace

lvlagnitude of electronic chuge

Planckconstant

Unifid atomic mass constant

Restmssof clcc[on

Rest mass of proton

Molarpsconstant

Avogadro constant

Bolhnarn constant

0navihtional constant

Acceleration of free fall

g60PHYSICSValuaof eonstrnts

30

c

lh

t4

' !

3.ffix 108mst

4rx l0'7Hnr

8.85xl0rrFmr

(l(36d)xl0{Frrr

l . f fx l0reC

6.63x10'rIs

1.66 x l0'2? S

9.ll x l0'rrkg

1.6? x l0i7kg

8.31JKrrnofl

6.02 x 10ts moll

1.38 x l0i3IK'

6.6i x l0'rrN*tkgt

9.8lms2

e

h

u

na

nh

ft

L,Nt '

k

(t

g

960t1*This question paper is CONFIDENTIAL until the examination is over CONFIDENTIAL*