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GCE JUN 2010 : AS 2 Waves, Photons and Medical Physics - Revised (Irish-Medium)

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So nr N a o ua c ht Uimhir L rionaid 71 Uimhir Iarrth ra ADVANCED sUbsIDIARy General Certificate of Education 2010 Fisic ag meas n Mod l 2: Tonnta, F t in agus Fisic Mh ochaine AY121 Aonad Meas naithe AS 2 [Ay121] D hAOINE 18 MEITHEAMH, MAIDIN AM 1 uair 30 n im ad. TREOIR D IARRTH IR Scr obh d Uimhir L rionaid agus d Uimhir Iarrth ra sna sp sanna chuige sin ag barr an leathanaigh seo. Freagair gach ceist. Scr obh do fhreagra sna sp sanna chuige sin sa scr dph ip ar seo. EOLAs D IARRTH IR Is 75 an marc ioml n don ph ip ar seo. Meas n far caighde n na cumars ide scr ofa i gceist 7. L ir onn figi ir idir l ib n ar thaobh na l imhe deise de leathanaigh na marcanna at ag dul do gach ceist n do gach cuid de cheist. Tarraing tear d aird ar an Bhileog Sonra agus Foirml at taobh istigh den scr dph ip ar seo. T cead agat ireamh n leictreonach a s id. Don scr daitheoir amh in Uimhir Marcanna Ceiste 1 2 3 4 5 6 7 8 9 10 Marc Ioml n 5516.04 1 (a) (i) Rinneadh l as solais a pholar . Cad a chialla onn an t arma polar ? scr daitheoir Amh in Marcanna Athmharc [1] (ii) Cuir s os ar an d igh a ndeimhneofa go ndearnadh l as solais a pholar . [2] (iii) Is fadtonnta iad fuaimthonnta. M nigh cad chuige nach f idir na tonnta seo a pholar . [1] (b) Le linn ceolchoirme amuigh faoin aer b onn callaire ar crith ag 512 Hz. An fhuaim a bh onn hast ag an challaire, glacann s 0.510 s le dul a fhad le duine at suite 170 m n challaire. R omh tonnfhad na fuaime a bh onn hast n challaire. Tonnfhad = m 5516.04 [4] 2 [Turn over 2 (a) I dturgnamh le s an athraonta gloine a thomhas, fuair mac l inn sraith tortha do raon d uillinneacha ionsaithe agus d n-uillinneacha athraonta comhfhreagracha. Cuir s os ar an d igh ar f idir na tortha seo a phr ise il le luach beacht a fh il do sh an athraonta gloine. scr daitheoir Amh in Marcanna Athmharc [3] (b) T ga solais ag gluaiseacht amach bhloc tr dhearcach isteach san aer. Is 1.38 s an athraonta bhar an bhloic. Tagann an ga amach as an bhloc agus isteach san aer ar uillinn 43.0 leis an normal. R omh an t- osmh ad ar uillinn an gha taobh istigh den bhloc le go rachaidh an ga seo tr fhrithchaitheamh inmhe nach ioml n. M ad = 5516.04 [5] 3 [Tiontaigh an leathanach 3 (a) Taispe nann F or 3.1 lionsa inr imnithe agus a phoint f casacha ar phr omhais an lionsa. Is cearn ga aon cheintim adar iad na cearn ga is m ar an eangach. scr daitheoir Amh in Marcanna Athmharc F or 3.1 (i) Ar F or 3.1, tarraing saighead cheartingearach ( ) le seasamh do r ad ag su omh cu ar phr omhais an lionsa sa d igh go bhfoirmeofar f or omh fhormh adaithe den r ad. Tarraing gal ar id bheacht lena thaispe int cad mar a fhoirm tear omh an r ada a chuir t isteach. Lip adaigh an omh seo IG. [3] (ii) Glac tomhais bheachta do ghal ar id leis an fhoirmle, m = v /u, do fhormh ad a fh or . TAISPE IN GO SOIL IR na tomhais a ghlacann t . Scr obh a luachanna agus taispe in an d igh a n- s idtear iad leis an fhoirmle a fh or . [5] 5516.04 4 [Turn over 4 (a) (i) Sa sp s seo th os, tarraing sceitse lip adaithe den fhearas a s idtear i dturgnamh scoilt n Young le trasna ocht a l iri . scr daitheoir Amh in Marcanna Athmharc [2] (ii) Sa bhosca chuige sin th os, sceitse il go c ramach l ar id den phatr n trasna ochta a fuarthas sa turgnamh. [2] (b) (i) I dturgnamh scoilt n Young ar thrasna ocht, s idtear solas dar tonnfhad 550 nm. Is 0.910 mm deighilt na scoilt n agus is ag 1.80 m na scoilt n a fhaightear frainse geal l rnach an phatr in. C n fad fhrainse geal l rnach an phatr in ag a bhfaighf an ch ad fhrainse geal eile? Fad = m 5516.04 [2] 5 [Tiontaigh an leathanach (ii) C n dath, dar leat, a bheadh ar an solas soilsithe at de dh th le gur uasluach an fad a r omhadh in (b)(i)? scr daitheoir Amh in Marcanna Athmharc Dath [1] (iii) Luaigh an riachtanas turgnamhach ginear lta leis an bhreathn is fearr a fh il ar an phatr n trasna ochta a th irgtear. [1] 5516.04 6 [Turn over 5 (a) Nuair a th ann tonnta irithe tr chr , b onn d raonadh ann. Cialla onn s seo scr daitheoir Amh in Marcanna Athmharc go bhfuil na tonnta d chumtha go moill tear na tonnta go laghda tear ar thonnfhad na dtonn go leatar na tonnta amach go m ada tear ar mhinic ocht na dtonn Tice il ( ) an bosca n na bosca cu thuas a bh onn i gceist. [1] (b) T l as comhthreomhar solais dar leithead tuairim is aon mh adar amh in ag dul go normalach tr dhoras oscailte at d reach n os l n aon mh adar amh in ar leithead. M nigh c acu a bhreathn far d raonadh suntasach n nach mbreathn far. [2] (c) Taispe nann F or 5.1 l ar id sc laithe de thonnbhr ide comhthreomhara dar tonnfhaid dhifri la at ionsaitheach ar chr ite den mh id ch anna. Comhl naigh na l ar id go c ramach le ceithre thonnbhr d a thaispe int i ndiaidh d ibh teacht amach as na cr ite. (i) (ii) F or 5.1 5516.04 [4] 7 [Tiontaigh an leathanach 6 (a) (i) N ta on a asta tear ghabhl g thi nta at ar crith, is f idir a mhinic ocht a fh il ag baint s id as ascalasc p ga-chat ideach agus ball eile fearais. Luaigh an ball eile fearais a bh onn de dh th leis an mhinic ocht a fh il ar an d igh seo. scr daitheoir Amh in Marcanna Athmharc [1] (ii) Taispe nann F or 6.1 an rian a l ir tear ar an sc ile n d ascalasc p ga-chat ideach mar gheall ar fhuaim n ta on. Is cearn ga aon cheintim adar iad na cearn ga is m ar an eangach. F or 6.1 T an t-ambhonn den ascalasc p gha-chat ideach socraithe ag 2.00 ms cm 1. R omh minic ocht an n ta on. Minic ocht = Hz 5516.04 [4] 8 [Turn over (b) Taispe nann F or 6.2 graf simplithe den d igh a bhfreagra onn gn thchluas an duine do dh ine fuaime thar raon minic ochta . scr daitheoir Amh in Marcanna Athmharc leibh al d ine 120 fuaime 1 10 100 1000 10000 Minic ocht/Hz F or 6.2 (i) Luaigh an neasmhinic ocht ag a bhfuil an ogaireacht is airde ag an chluas. Minic ocht = Hz [1] (ii) Luaigh an leibh al d ine is l is f idir leis an chluas a bhrath ag a h ogaireacht is airde. Leibh al d ine = dB [1] (iii) Ar F or 6.2, sc thaigh an r igi n den ghraf a sheasann don fhuaim nach f idir le cluas an duine a bhrath. 5516.04 9 [1] [Tiontaigh an leathanach ba ch ir duit cuid (b) den cheist seo a fhreagairt i bpr s lean nach. Meas n far th ar chaighde n na cumars ide scr ofa. 7 scr daitheoir Amh in Marcanna Athmharc (a) Is at san abairt seo a leanas cur s os neamhioml n ar ionsc p sol btha m ochaine. Is gl as m ochaine a chuireann solas tr le horg in inmhe nacha an choirp a shoilsi agus le d obh seo a aistri chuig breathn ir m ochaine. F gadh focail ar leith as an chur s os thuas. Sna sp sanna chuige sin, scr obh focail chu leis an chur s os a chomhl n . Luaigh feidhm bhreise a chuirtear go minic i gcain al eile d ionsc p. [3] (b) Is t arma iad comhlean nach agus neamh-chomhlean nach a s idtear le cur s os ar strucht r ionsc ip. Cuir s os ar mh ni na dt arma seo agus ar a n- bharthacht nuair a bh onn siad in s id i gcomhth acs ionsc p m ochaine. [4] Caighde n na cumars ide scr ofa [2] 5516.04 10 [Turn over 8 (a) T f t in solais ionsaitheach ar an dromchla de mhiotal f tasta och. Luaigh dh choinn oll le go n-ast far f taileictreoin dhromchla an mhiotail. scr daitheoir Amh in Marcanna Athmharc 1. [1] 2. [1] (b) Is 3.84 10-19 J an fheidhm oibre de mhiotal irithe. T s shoilsi ag solas gorm dar tonnfhad 450 nm. R omh an fuinneamh d fh t n solais ghoirm, agus luaigh agus m nigh ansin c acu a tharl idh ast f taileictreach n mhiotal seo n nach dtarl idh. [3] 5516.04 11 [Tiontaigh an leathanach 9 (a) Speictrim ast ch in adamh, cuireann siad fianaise ar f il go bhfuil leictreoin ann i leibh il scoite fuinnimh in adaimh. M nigh go hachomair cad a chialla onn an r iteas seo. scr daitheoir Amh in Marcanna Athmharc [3] (b) Taispe nann F or 9.1 cuid de na leibh il fuinnimh in adamh hidrigine. 0.85 eV 1.51 eV 3.39 eV 13.6 eV F or 9.1 R omh an mhinic ocht is sle rada ocht a bh onn hast nuair a dh anann leictreon trasdul cu idir dh cheann de na leibh il a thaispe ntar. Minic ocht = Hz 5516.04 [5] 12 [Turn over 10 (a) (i) Cad a chialla onn tonnfhad de Broglie? scr daitheoir Amh in Marcanna Athmharc [1] (ii) Luasgh ara tear leictreon threoluas seal go treoluas ard agus n athra onn mais an leictreoin. Ar F or 10.1, d an sceitse de ghraf lena thaispe int cad mar a bh onn tonnfhad de Broglie an leictreoin ag athr lena threoluas v. 0 v F or 10.1 [2] (b) Is 1.13 10 13 m fadtonn de Broglie de phr t n i luasaire c ithn n . R omh treoluas an phr t in. Treoluas = m s 1 5516.04 [3] 13 [Tiontaigh an leathanach sEO DEIREADH AN sCR DPH IP IR Cuireadh isteach ar chead chun an t- bhar c ipchirt uile a at irgeadh. I gc sanna irithe is f idir n r irigh le CCEA teagmh il a dh anamh le h in ir c ipchirt agus beidh s s sta na hadmh lacha sin a f gadh ar l r a chur ina gceart amach anseo ach a chur ar an eolas. 5516.04 Fisic GCE (Ard-fhotheastas) Bileog Sonra agus Foirml Luachanna na dtairiseach luas an tsolais i bhfol s c = 3.00 108 m s 1 bunlucht e = 1.60 10 19 C tairiseach Planck h = 6.63 10 34 J s mais leictreoin me = 9.11 10 31 kg mais pr t in mp = 1.67 10 27 kg luasgh ar saorthitime ar dhromchla an Domhain g = 9.81 m s 2 leictreonvolta 1 eV = 1.60 10 19 J Foirml s ideacha D fh adfadh na foirml seo a leanas a bheith s ideach le roinnt ceisteanna sa scr d a fhreagairt: Meicnic Imchoime d fuinnimh 1 2 2mv 1mu2 = Fs 2 Dl Hooke F = kx (tairiseach linge in k) Leibh al fuaimdh ine/dB = 10 lg10 I I0 Trasna ocht an d fhoinse = Foirmle an lionsa 111 u+v= f Formh ad v m=u Difr ocht poit insil losa V = E Ir (F.l.g. E; Friota ocht Inmhe nach r) Roinnteoir poit insil Vout = d fh rsa tairiseach Fuaim Tonnta ay d Solas Leictreachas C ithn n agus f t in Cothrom id de Broglie 5516.05 h =p R1Vin R1 + R2

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Additional Info : Gce Physics June 2010 Assessment Unit AS 2, Module 2: Waves, Photons and Medical Physics - Revised (Irish-Medium)
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