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  • 8/18/2019 cxc2004p1

    1/11

    AF'FIX STAI.

    CANDIDATE

    -

    PLEASE

    NOTE

    You mustsign elorv nd cturn

    hisbooklet

    vith

    theArxwcrShcet.

    Foilureto

    dosomay resultilr

    disqualifi'cation.

    l .

    a

    FORMTP2004tt5

    The

    SI

    un i to f l c r rg th

    s the

    (A)

    newton

    (B)

    metre

    (C)

    ki lograrn

    (D)

    second

    C A R I B B E A N E X A M I N A T I O N S

    C O U N

    SECONDARY EDUCATION

    CIIRTIITICATE

    I'XAMINATION

    PHYSICS

    IVIAY/JL'NE2OO4

    C I L

    Paper

    01

    -

    General Proficiency

    TStrtitrutes

    07

    JUNB

    2004

    a.m.)

    READ THE

    T'OLLOWING

    DIRECTIONS

    CARI,IIULLY

    In addit ion

    o

    this est

    booklet,

    ou

    shouldhavean

    answer heet.

    Each tem n

    this

    esthas

    our

    suggested nsrvers

    ettered

    A). (B), (C),

    D).

    Read

    each rcrn

    you

    are

    about o

    answer

    nd

    decide

    which

    choice

    s

    best.

    On

    your

    Answer

    heet, ind thc nurnbcrwhich

    corrcsponds

    o

    your

    itcnranclshadcrlrc

    slracc

    having

    hesame

    etter

    as

    the answcr

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    havcchosen.

    Look at

    the sample tern

    bclorv.

    Sample tenr

    rESrcoDb01238010

    Sample Ar. rswe-r

    @ o

    @ @

    I

    o.

    1 .

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    9 .

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    The

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    o this t em

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    so ans\ 'cr

    pacc

    B)

    lras

    bcenshailcd.

    If

    you want

    o change our

    anslver,

    e

    sure

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    erasc

    our

    old anslve conrplc- tely

    nd i l l

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    onc. You

    can

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    blck to thc

    harder tcrn

    later . Your

    score

    wil l

    be the

    total number

    of correct

    answers.

    Figr-rres

    re

    not

    necessar i ly

    rawn o scale.

    You mavdo any oush vork n th isbook lc t .

    The

    useof

    non-programntab le

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    test

    consists

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    hat heanswer

    heet

    rovides

    paces

    or

    rr iorc nslvershan herc

    arc tcnrs

    in th is es t .

    DO NOT TURN

    THIS PAGE

    UNTIL YOU

    ARE

    TOLD

    TO DO

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    Copy

    i

    e

    O

    2003

    Cari

    bbea

    n

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    0r238010/F200+

  • 8/18/2019 cxc2004p1

    2/11

    rl

    a

    L '

    W h i c h

    o f

    t l r c

    f o l l o r v i n g

    q u a n t i t i c s

    dimensionless?

    I S

    1 .

    The

    unit

    of

    electr ical

    expressed

    as

    ( A )

    l f ) =

    l V . A - '

    ( B )

    l f ) = 1 A . V

    (c) l f)

    -

    I

    A.V

    I

    ( D )

    l C ) = l W . A ' '

    I

    gram

    s

    equal

    o

    resistance

    maY

    be

    (A)

    (B)

    (c)

    (D)

    Density

    N{ass

    Relative

    DensitY

    Vo lume

    ,,

    3 .

    measured

    50

    $J

    slectr ic

    heater

    to

    suPP|Y

    smal l

    p ieces

    of

    ice

    f

    i e'r'

    f unne l

    \ \ 'hy

    is

    this

    method

    ery

    inaccttrate

    hetr

    use'd

    n he

    Caribbean?

    (A) The

    heater

    s

    notporverfulenotrgh

    o

    rnelt

    he

    ce.

    (B)

    Thc

    cc

    vould

    meltevcn

    f the

    heatcr

    wcre

    not

    urned

    n'

    (C)

    Thc

    temperature

    l

    the

    ce

    s 30"C

    instead f 0"C'

    (D

    )

    Watcr

    w'otrld

    c

    cvaporatin-g

    iorrr

    the

    oPen

    caker '

    4 .

    \ \ /h icho f - t l te

    o l lo r ' l ' i r rg

    r r t i ts

    s the

    un i t

    o f

    monrentum?

    ( A )

    k g t '

    (B)

    k-e

    m

    s' l

    (C)

    kg

    m

    s'r

    ( D ) N m

    0r238010/120c 1

    Itern

    6

    rcttrs

    to

    thc

    dia-eram

    elow'

    For

    any

    point

    (r ,

    -v)

    n

    hc

    ine

    QS,

    when

    0,

    the

    valtre

    f

    f

    is

    (A)

    ( B )

    (c )

    ( D )

    oQ

    OS

    O P

    OP/OR

    An

    object

    f

    tr lass,

    rr , s

    attachcd

    o

    a spr ir rg

    bir lance

    nd

    ts

    u'c ight,

    w' ' ecorded'

    What

    wi l l

    be

    he

    esult

    l ' the

    object

    s

    aken

    o

    thc

    rnoott

    attd

    rvci-ghccl

    hcre'?

    (A)

    Nlass

    =

    rrl;

    rveigltt

    greater

    han

    rr '

    (B)

    iVlass

    rr l ;

    vcight

    ess

    han

    rt '

    (C)

    N{ass

    reater

    han

    tt;

    wcict l t

    =

    iu

    (D) N1ass

    ess

    hittr

    r r ;

    weislt t

    =

    ru

    Wl i i c l t

    o t ' the

    b l lo rv ing

    i t r i tn t i t i cs

    v ' i l lbc

    constant,

    f

    a

    constant

    tct

    brcc'

    s

    appl iecl

    o

    abody?

    (A)

    Ve loc i tY '

    (B l

    K ine t ic

    encrsy

    (C)

    Nlo tnen tu tu

    (Dt

    Acce le ra t ion

    (A)

    (B)

    (c)

    (D)

    10

    mi l l igrams

    100

    mi l l igrams

    l000mi l l igrams

    l0@0n'rilligrams

    By

    switching

    n

    the

    heater

    n

    the

    ol lowing

    apparatus

    or

    aknown

    ime

    and

    veighing

    he

    water collected r-rhe beaker, he specific

    latent

    heat

    of

    fusion

    of

    ice

    can

    be

    measured'

    6:_

    ,f

    8 .

    CO ONl'OTFll I Nl-.XTPAGI'

  • 8/18/2019 cxc2004p1

    3/11

    '

    ['

    2t

    (A)

    (B)

    (c)

    (D)

    low

    centre

    of

    gravity

    niurow

    wheel

    base

    sun roof

    long front

    10.

    A stable

    well

    designed acing

    car

    must

    havea

    -t

    I

    1. Which

    of

    the ol lowing

    forntulae

    oLr ld

    c

    used o find the

    average

    pceclof

    n

    r-rlrjcct?

    (A)

    Changc r r

    ve loc i t .v

    Time

    taken

    (B)

    Change

    n d isp lacenren t

    Time

    taken

    Distance ravc:l led

    Time taken

    Dis tance

    rave l led

    T i r r re

    uken

    Which

    of

    the

    'o l lor . r ' in-9

    ncasur in-u

    cr iccs s

    sL r i t ab l eb r rnea i su r i ng

    l r c

    d i a rnc t e ro f

    a

    r t r -

    man

    hai r?

    The

    diagrams

    elow,drawn

    o

    scale, epre-

    sent

    wo forces

    S

    and

    T

    actingat

    O.

    In

    w'hichof

    he bl lowingdiagrams

    s

    he esulr-

    ant

    n he

    direction,

    X?

    , s

    ./

    (A)

    o

  • 8/18/2019 cxc2004p1

    4/11

    . f

    An

    object

    s

    removed

    rom

    the

    grou.nd

    nd

    pla"ej

    on

    a

    shelf '

    Which

    of

    i ts

    properttes

    would

    You

    expect

    o

    change?

    (A)

    Mass

    (B) Volurne

    (C)

    Potentialenerg) '

    (D)

    Kinetic

    energy

    Pressure,

    ,

    n

    aliquidcan

    becalculated

    iorlt

    the

    brmula

    P : P g h

    Which

    sets

    of

    units

    belorv

    * ' i l l

    g iv 'e

    he

    pressurc

    n

    the

    SI

    unit?

    p 9 h

    (A)

    g cnl-r

    nl

    s'r

    Inll l

    ie l

    kg

    -- '

    N

    kg'

    r11

    (C)

    g

    cm' '

    N

    kg'

    In

    (D)

    kg

    nr-i

    cnl

    s-r

    crrl

    A

    bubbte

    f

    gas

    ises

    o

    t t"

    "tLt"

    of

    a

    soft

    d r ink .

    Th is

    is

    because

    he

    (A)

    upthrust

    on

    the

    bubblc

    is

    greater

    than

    he

    weigh t

    o f

    the

    bubb lc

    (B)

    upthrust

    on

    the

    bubble

    s

    greater

    ihan

    the

    weight

    of

    rvater

    t

    dis-

    Places

    (C)

    ,u"igt l t

    of

    rvater

    displaced

    y

    the

    UuUUte

    s

    less

    han

    hc

    w'cight

    f

    the

    bubb lc

    (D)

    density '

    f

    the

    gas

    s

    greater

    harr

    the

    dens i tY

    f

    thc

    dr ink

    A

    glass

    ulb

    s

    r l led

    wit l i

    agas

    at

    atelnpel 'a-

    tulof293

    K.

    l l- the

    nit ial

    pressureoft lregas

    is

    1' .

    what

    wil l

    i t

    bc

    rvltcn

    lte

    erttper:t t t tre

    increases

    o

    360

    K' /

    )

    c) 7

    ( A )

    -

    -

    x P

    1 6 0

    293

    ( c )

    1 6 0

    3 6 0

    ( D )

    '

    t q l

    Bo1' le 's

    arv

    br

    a

    gas

    cal l

    be

    estetl

    xpcr i-

    n rc , t ta l l i , .

    rov ided

    v l r ich

    f

    the

    o l low ' i r tg

    is/rtrc

    rt

    ai

    rtai

    necl

    corrstatrt'?

    I

    ' l -er tt

    pcratLlre

    I .

    Press l t r c

    t

    l .

    Dcr rs i t l '

    IV .

    i \ lass

    ( A )

    l l l o n l l '

    ( B )

    I a n d

    l

    o r r l Y

    (C)

    [

    a r rc l

    V

    on l l

    ( D )

    I .

    I l

    a n d

    l l

    o n l y

    \\ 'h ich

    of

    the

    tbl lorvir rg

    s

    the

    N1OS

    ' str i t-

    able

    rattse

    br

    a

    cl ir r ical

    hernrotttcter ' l

    (A)

    0

    oC

    to

    44

    oC

    ( B )

    - 1 0

    0 C

    t o

    I

    l 0

    o C

    ( C)

    3 5

    o C

    t o

    100

    ' C

    (D)

    35

    oC

    to

    44

    0C

    COONTOTHENI--XTPA

    1 8 .

    15.

    3 6 0

    ( B )

    293

    P

    I

    P

    I

    P

    1 6 .

    t 9 .

    17.

    20.

    0r238010ff20o+

  • 8/18/2019 cxc2004p1

    5/11

    '

    lr

    21.

    The

    specif ic

    heat

    capacity

    f

    a

    mater ial

    s

    the

    energy

    required

    o

    (A)

    melt

    I

    kg

    of the

    nrater ial

    with

    no

    change

    of temperature

    (B)

    change

    he

    temperature

    f

    rhe

    materialby I K

    (C)

    change

    kg

    of

    the

    iquid

    nral"cr ial

    to

    I kg

    of

    gas

    without

    a

    change

    n

    temperature

    (Dt

    change

    he

    emperarure

    f

    I

    ks

    of

    rhe

    mater ial

    bv

    I

    K

    22.

    The

    specif ic

    atenr

    heat

    of vapor ization

    f

    water

    s

    theenergy

    equired

    o

    change

    kg

    of water

    at

    (A)

    0

    "C

    to

    .stcanr

    r

    100

    oC

    (B)

    99 .9

    C

    ro

    s teanr

    t

    lO0. l

    "C

    (C)

    100

    C

    to

    srearn

    t

    100

    oC

    (D)

    O

    "C

    to

    ice

    at

    0

    "C

    23.

    Which

    of

    the

    fol lowing

    starenrenrs

    on-

    27.

    cerning

    he

    adiation

    f

    heat

    s

    rue,l , .

    There

    are

    NO

    attractive

    brces

    betweerr

    he

    nrolecules

    n

    a

    (A)

    l iqu id

    andgas

    (B)

    so l id

    and

    a l iqu id

    (Ct

    l i c lu id

    (D)

    gas

    In

    a Brown ian

    mot ion

    expcr i r r r c - r r t

    . i th

    a

    snrokc

    el l ,

    he

    ast

    andonr

    nrotiorr

    f

    the

    smokc

    part ic les

    hich

    s

    observecl

    s

    duc

    tr

    the

    (A)

    co l l i s ion

    o f

    snroke

    par t ic lcs

    wi t l r

    a i r

    mo lccu les

    r r

    hc

    cc l l

    (B)

    bombardn tcn t

    f

    o r re

    mokc

    par t i_

    cle by othersrnokeptr t ic les

    (C)

    regu la r

    ib ra t ion

    f thc

    snrokc

    ar_

    t ic les

    (D

    co l l i s ion

    f rhc

    r r rokc

    ar t ic le

    vv i t l r

    the wa l ls

    o f the

    conta iner

    \\ 'h ich

    of

    the

    ol lowing

    s

    rhc

    corrc*

    rela_

    tion

    between

    he

    wavelcngth

    , ,

    pcecl

    , and

    frequencyf

    of a wave?

    (A) )"=fu

    ( B t

    J=

    )

    /L

    ;

    Thc

    sprcacl ing

    f

    a wavc

    into

    thc

    rcsir .r r r

    beh inc l

    n

    obs t ruc t ron

    s

    ca l led

    (A)

    c l i t ' f ' r i r c t ion

    (tJ)

    ref l 'act ion

    (C

    .supe

    pos

    tion

    (D)

    intcr f 'ercnce

    25.

    26.

    I

    L

    I I .

    Radiation

    an

    only

    takeplace

    n

    a

    mater ial

    medium.

    A good

    absorber

    .s

    also

    a goocl

    emitter

    of radiat ion.

    Dark

    dul l

    surtaces

    re

    better

    ln i t_

    te rs

    han

    sh iny

    ones .

    I I I

    on ly

    I and

    I

    on ly

    I and

    I I

    on ly

    I I

    and

    I I

    on ly

    I I I .

    ( A )

    (B)

    (c)

    (D)

    (c)

    ( D )

    ,

    = -

    J l

    t

    U

    21.

    An electr ickett le ir l l of rvatcr s pluggccr

    into

    he

    mains.

    The

    process

    y

    u

    hich

    hear

    travels

    hroLrgh

    he rv,ater

    s

    (

    A

    )

    e ec t

    i f i ca t

    o

    n

    (B)

    evaporation

    (C)

    convec t ion

    (D)

    rad ia t ion

    28.

    0lll80l}/F2Cllr.t

    GOONTOTHITNEff pActl

  • 8/18/2019 cxc2004p1

    6/11

    li

    - 6

    32.

    29.

    Direction

    of

    ProPagation

    4

    Points

    P,

    Q

    and

    R

    are

    n

    Phase'

    Points

    S

    and

    T

    are

    out

    of

    Phase'

    The wavelength f the rvave s the

    distance

    PR.

    I

    on lY

    I I

    onlY

    I

    and

    I

    onlY

    II

    and

    . l l

    onlY

    The

    igure

    above

    hows

    wavefront

    about

    o

    reach-a

    efl

    ecting

    surface

    XY'

    Which

    o

    t

    hc -

    fbl lowing

    would

    represent

    he

    rvavc-front

    attcr

    et-lection?

    - \

    / ' \

    , / \

    " - -

    ]

    Y

    Displacement

    I .

    I I .

    III.

    (A)

    (B)

    (c)

    (D)

    Which

    of

    the

    following

    statements

    abo.ut

    the

    wave

    shown

    in

    the

    diagram

    above

    s/

    are

    rue:

    (A)

    (B)

    Y

    X

    Y

    X

    30.

    Ifsoundsofdiffer ingfrequenciesareplayecl

    on

    a

    piano,

    n

    which

    of

    the

    ol lowing

    cltar-

    acter ist ics

    ould

    a

    change

    be

    detectcd?

    (A)

    Loudness

    (B)

    SPeed

    (C)

    P i tch

    (D)

    Wave leng th

    An

    explosion

    causes

    he

    emission

    of

    the

    follow

    ng

    YPes

    f

    rad

    ation'

    I .

    L igh t

    I l .

    Sound

    IIL

    Infra-red

    Which

    of

    these

    wi l l

    be

    received

    irst

    by

    pcrsot)

    ur tto

    istatrcc

    rvl l '?

    (A)

    I

    and

    I

    on lY

    (B)

    I

    and

    II

    onlY'

    (C)

    I I

    and

    l l

    on lY

    ,?,

    l ,

    I I

    and

    I I

    The

    sharp

    cclgcs

    of

    shadorvs

    trg-scsl

    lr i l

    t igh t

    (A)

    has

    a

    wave

    nature

    (B)

    is

    a

    torm

    of

    enc'rgY

    (C)

    tr lvels

    in

    straight

    ines

    (D)

    t rave ls

    erY

    qLr ick lY

    The

    spccif ic

    atent

    heat

    of

    fusiot l

    of \\ ' i l t

    is

    34OkJ

    g'r .

    This

    r leans

    hlnvhcn

    lt)

    kg

    o

    water

    lrcczes

    (A)

    34

    kJ

    of

    hcat

    s

    absot'Lrccl

    (B)

    3' t

    kJ

    of

    heat

    s

    given

    ottt

    ic l

    3

    400

    kJ

    of

    hcat

    s

    absorbed

    (D)

    3

    400

    kJ

    of

    hcat

    s

    gtvcn

    ot- tt

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    33:

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    37.

    5.

    The diagram above

    shows

    a ray of

    white

    light

    being

    dispersed

    y a

    prism

    to

    fornr

    a

    visible

    spectrum.

    Which

    of the ol l owing

    makes his

    possible.

    (A)

    The colour v iolct

    has hc

    shorter

    wavelength,

    ence

    efracts

    rorc

    than

    colour

    ed.

    (B)

    Thecolour

    edhas

    he ongerwave-

    length,hence efractsmorc than

    co lour

    io le t .

    (C)

    The colour v iolet

    has he longer

    wavelength,

    ence

    eliacts

    morc

    than o lour red .

    (

    D)

    The colour etl

    has hc

    shortcrwave-

    Iength, encc

    efracts

    morc than

    co lour

    v io le t .

    , -

    36.

    Which

    of the fol lorving

    statemenrs

    ould

    be true

    of

    the image

    of an objectplacecl

    t

    the bottom of a tank of waterand viewcd

    vert ical ly

    rom above?

    I .

    I t i s

    v i r tua l .

    I I .

    I t i s d imin ished.

    I I I .

    I t is

    nearer

    o the

    ele than

    thc

    object.

    (A)

    IV on ly

    ( B )

    I a n d I

    o n l y

    (C)

    I and

    I I

    on ly

    (D) I I and I I on ly

    The

    abovediagram

    epresents

    thin con-

    verg ing

    ens ,L ,

    r v i th

    a

    pr inc ipa l

    x is

    GL.

    FL is

    the bcal ength

    of thc ens

    ancl

    GIr

    =

    FL. Whe

    c

    shouldanobject

    beplaced

    oas

    to prodLrce vir tual

    nrasnif lecl

    rntsc' l

    ( A )

    A t G

    (B)

    To the e f t

    o f G

    (C) Bc twccnF and G

    (D)

    Bc twecn

    and

    F

    Whiclr

    of thc bl lorving vor"r ld

    e nre

    oI thc

    irnage ir r r r recl

    y the lcns

    of a

    carrrcra'J

    3rJ.

    I .

    i l .

    I I I .

    I V .

    I i i s

    v i r t t ra l .

    l t i s

    r ca l .

    l t i s

    d i rn in ished.

    l t i s

    upr igh t

    (A) I o r r ly

    ( lJ )

    I I i ind

    I i on ly

    (C)

    I and

    V

    on ly

    ( D)

    l V o n l y

    32 .

    A.g lass od is

    n rbbed

    wi th

    a p iccc -

    f

    s i l k

    andbeconre.sosit ively

    hargcd.

    Thc

    glass

    rod

    bccarnc har-tcd

    y

    (A)

    ga in ing

    pro tons

    (B) los ing ro tons

    (C)

    ga i r t ing

    lec t rons

    (D)

    losin_*- . le

    trons

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    40.

    Which

    of

    the

    following

    diagrams

    epre-

    sents

    he

    electric

    ield

    exist ing

    etween

    two

    oppositely

    harged

    oint

    charges'?

    (A)

    +

    (B)

    +

    - 8

    42.

    43 .

    dissipated

    n a

    rcsistor ' l

    (A)

    P

    =

    I:R

    2

    R

    (D)

    + a

    ( B ) P =

    n

    '

    . ' '

    2

    . .

    v f (

    41.

    (A)

    ( B )

    (c)

    90"

    s l n

    c

    s in

    90"

    s i n

    c

    Swi tches

    Circtr i t

    brcakers

    l jLrscs

    I

    o n l y

    I I I

    on ly

    I I

    and

    I I

    on lY

    I ,

    I I

    and

    I I I

    GOONTOTHtrNEXT

    PACE

    .t5.

    I l r ,

    (A)

    ( B )

    I l

    c)

    I .

    I I .

    r i t .

    ( A )

    ( B )

    (c)

    ( D )

    1 \

    Current

    The

    graph

    above

    shows

    the

    alternating

    urrent

    wi th

    t ime.

    f,requencyf thiscurrent s

    (D)

    l/ l

    I

    ver ia t ion

    f

    Thc

    r

    l lue

    4{.

    Which

    of

    the

    fol lowin'g

    could

    NOT

    be

    a

    unit

    o f

    current 'J

    (A) w

    v' l

    (B)

    v

    f) 'r

    (C)

    C s' '

    ( D ) C s

    W h i c h

    o f

    t h e

    f o l l o w ' i n g

    e c l u a t t o n s

    CANNOT

    be

    ttsed

    o

    detennine

    he

    powe

    ( B )

    P =

    V

    ( C )

    P = V I

    The

    rc f rac t ive

    index

    of

    a

    t ransp l t r cn t

    r r r cc l i t r t r t

    i th

    a c r i t i ca l

    ang lc ,

    ' .

    lb r

    I ig l t t

    t rave l l ing

    ro tn

    hc

    t t tcd i t rn r

    o

    i t i

    i s

    ( D )

    s i n

    c

    In

    domest ic

    ns ta l la t ion

    )

    s te rns ,

    h ich

    r f

    the

    fo l lo rv ing

    hoLr ld

    e

    p laced

    n

    thc

    i rc

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    46.

    - 9

    In

    which

    of

    the fol lowing

    diagramsare 48.

    resistors and

    Q

    in

    ser ies

    wi th

    each

    other

    and

    paral lel

    with R?

    (A)

    When

    a arge urrent asses

    hrou$h fuse,

    which

    of

    the fbl lowing

    is

    the

    sequence f

    even ts?

    A

    s imp le xper iment as

    condnc ted s ing

    the

    circuit diagrams

    shorvn

    abovc.. Tlrc

    salne

    onrponclUs

    cre

    usecl nd lre

    bLr l tr

    was

    it tc l

    normalbr iglr tncs.sn eacltcase.

    Which

    o f the b l lowings t r r tcn ren tsou lc l

    bc corrcct?

    (B)

    ffi

    a

    (c)

    (D)

    Wire

    gets

    hot

    -+

    wire

    melts

    ->

    current s

    cut

    of f

    Wire gets

    hot

    -+

    current

    s cut

    of f

    -+

    wire

    mel ts

    Wire

    nrelts

    +

    currcnt

    s cLrt

    l ' l ' ->

    rvire

    -9ets

    ot

    Wire

    melts

    +

    rvire

    gets

    hot

    -+

    current

    s

    cut

    ol ' f

    The bulb s def 'ect ivc.

    Thc

    bat tc ry s dc lcc t i r

    .

    The

    diodc s clc l l 'c t iv 'c.

    I

    o n l y

    I I I

    o n l y

    I and I on l l '

    I I a n d

    I I o n l y

    sral

    itational

    elcctrostatic

    rnagnetlc

    cc-ntnpctal

    COONTOTI-lti

    N :XT Pr\Cit

    I I .

    I I I .

    ( A )

    ( B )

    (c)

    (D)

    47:

    (A)

    (B)

    (c)

    (D)

    49.

    T*o

    l i - sh t , lunr in iunr

    phcres

    anc lB a rc

    suspcndcd

    y insr-r lat in-9hreacls. i thcl

    conre o

    rcs t

    as

    sho*n in

    the c l iagram.hc

    lo re kccp in_e ,

    hcn l pLr rLs

    ( A )

    ( B t

    ( c )

    ( D )

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    . t '

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    5 1 .

    The

    diagraltts

    belorv

    show

    thc

    nlalgnt'tlc

    I ' ie ld

    ines

    Plotted

    Y

    a

    student'

    0.

    Which

    of

    the

    circuits

    below

    could

    prodr ' tce

    the

    race

    on

    the

    osci l loscope

    crecn

    ltown

    in

    the

    diagram

    above

    when

    tlie

    ends

    of

    the

    resistor

    are

    connected

    o

    the

    Y

    plates'?

    (A)

    u

    (B)

    (D)

    ;

    (c)

    III

    ( A r

    ( B )

    ( c )

    (D)

    c.R.o

    Wli ich

    of ' thc

    to l l t r rv ing

    i ' I rc

    orrect

    JK-

    }F

    I

    and

    l

    o t t l l '

    I and

    l l

    on lY '

    I l

    a n d

    l l

    o r r l l '

    I .

    I I a r r t l

    I I

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    f

    s2.

    Which of

    the

    fol lowing

    statements

    bout

    alternatins

    urrent s true?

    ( A )

    I t

    can be changed nto

    directcur-

    rent by a transformer.

    (B)

    It canbe

    recti f ied

    y

    usinga semi-

    conductor iode.

    (C)

    It

    canbe used

    o recharge bat tery.

    (D)

    I t

    is used to transnti t

    electr ical

    energy

    because f i ts high

    fre-

    quency.

    A

    rvire

    carrying

    a cUITL-ntr t a m agnetic

    f ic ld

    may

    exper ience

    force.

    Which

    o[the

    fbl lowing

    dcvices

    does NOT

    dependon

    this fbrce?

    (A)

    Loudspeaker

    (B)

    Electr ic

    motor

    (C)

    Mov ing

    co i l

    ga lvanonrc tc r

    (D)

    [ i lectromagnct

    to thc

    fbl lowing

    diagram.

    The

    parts abel led

    X in the

    known

    as hcr

    diagram are

    l t -

    55.- The

    RLrthcrfbrcl

    odeiof

    theatonr

    uggests

    thatanatom

    consists f

    a

    (A)

    sol idntass f

    protons ndelectrons

    (B)

    nucleus

    f

    protons nly

    vith

    rbit ing

    elcctrons

    (C) nucleus f equal umbersf ncutrons

    andelectrons

    vith

    rbit ins

    roton\

    (D)

    nucleus

    f

    protons

    ncl etttrons

    w' i th

    rbit inselcctrons

    56. Thenunrberof

    eutrons

    rr lsentn hcnuclcus

    o f the

    nuc l idc

    r :Rnx6

    is

    (A)

    ti6

    (E)

    116

    (c)

    222

    (D)

    30E

    57

    Which

    of hc bl lowing sNOT al ' fcctedyan

    el r 'c t r tc tc ' l r l

    (A )

    r \ l p l r r l p ; 11 ' 11 . 1 "

    (U )

    Bc t apa r t i c l c

    (C)

    Ncr-rtron

    (

    D) E,lcctron

    W

    h

    c r

    o

    thc tb

    ow

    n

    s

    sc c'n stsd sc 'r c

    c

    cl

    radiurn'l

    53.

    58.

    59.

    (A )

    ( B )

    (c)

    (D)

    Maric

    Curic

    IsaacNervton

    Albrcr-trinstein

    J .J .Thor r rpson

    5j,-

    Which

    l ' thc

    ol lorvir rg

    ANNOT.bc

    cflcctcd

    by

    a r lagrretic' ic ld ' l

    (A)

    Alplrapart ic les

    tBt

    Bc t lp i l r t i c les

    (C)

    Canrrna

    ay's

    (D)

    Electrons

    Wh

    i c h o

    I

    the fol I

    ow

    i n-u c c'

    n sts'ulott l

    vo

    u

    associatc,uvithuclcur r rcrgl"?

    ( A )

    ( B )

    (c)

    ( D )

    brushcs

    commLl ta to r

    armaturc

    co i l

    60.

    (A

    )

    -l-hontpson

    (

    B

    Bolrr

    (C)

    Clradw' ick

    (D)

    E ins ten

    Itcm 54

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