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GCE JAN 2011 : AS 2 Waves, Photons and Medical Physics - Revised (Irish-Medium)

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Uimhir L rionaid 71 Uimhir Iarrth ra ADVANCED SUBSIDIARY General Certificate of Education January 2011 Fisic ag meas n Mod l 2: Tonnta, F t in agus Fisic Mh ochaine AY121 Aonad Meas naithe AS 2 [AY121] D LUAIN 17 EAN IR, IARN IN 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. Don Scr daitheoir amh in Uimhir Marcanna Ceiste 1 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 2. 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. Tarraing tear d aird ar an Bhileog Sonra agus Foirml at istigh sa scr dph ip ar seo. T cead agat ireamh n leictreonach a s id. 2 3 4 5 6 7 8 9 10 Marc Ioml n 6457.03 1 (a) Is f idir tonnta meicni la a rang mar fhadtonnta n mar thrastonnta. Cuir s os ar an difear idir fadtonn agus trastonn i dt arma ghluaiseacht na foinse a chrutha onn an suaitheadh. Scr daitheoir Amh in Marcanna Athmharc _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [2] (b) (i) Solas neamhpholaraithe a thagann lampa. M nigh an chiall at le neamhpholaraithe. ___________________________________________________ ___________________________________________________ _________________________________________________ [1] (ii) Luaigh sampla de thonn nach f idir a pholar agus m nigh cad chuige nach f idir a pholar . ___________________________________________________ ___________________________________________________ _________________________________________________ [2] 6457.03 2 [Turn over 2 Cuir s os ar thurgnamh le luach beacht a fh il do chomh ifeacht athraonta ghloine agus bloc dronuilleogach gloine in s id. Ba ch ir go mbeadh na ruda seo a leanas i do fhreagra: l ar id den fhearas a bh onn in s id, na tomhais a bh onn de dh th agus na huirlis a bh onn in s id leis na tomhais a ghlacadh, an d igh a nd antar na tortha a phr ise il le luach beacht a fh il do chomh ifeacht athraonta ghloine. Scr daitheoir Amh in Marcanna Athmharc _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [6] Caighde n na cumars ide scr ofa 6457.03 [2] 3 [Tiontaigh an leathanach 3 Nuair a chuirtear r ad 32 cm os comhair lionsa inr imneach, d antar omh fh or il. T an omh 2.7 uair chomh m r leis an r ad. Is seo formh ad an lionsa at shainmh ni ag Cothrom id 3.1 Formh ad = Scr daitheoir Amh in Marcanna Athmharc Cothrom id 3.1 (a) Luaigh an mh chail radhairc i s il an duine a bhf adfa an lionsa seo a s id lena cheart . _____________________________________________________ [1] (b) (i) R omh cumhacht an lionsa agus luaigh na haonaid chumhachta. Cumhacht = ______________ Aonaid chumhachta = ______________ [4] (ii) Agus an lionsa seo in s id ag duine, b onn neasphointe an duine sin 25 cm n ts il. Mura raibh an lionsa in s id ag an duine, c fhad n ts il a bheadh neasphointe an duine ansin? Fad go dt an neasphointe = ______________ cm 6457.03 4 [2] [Turn over 4 Taispe nann F or 4.1 callaire at suite i ngar don taobh oscailte d fhead n dar fad 1.40 m. T an callaire ceangailte de shol thar minic ochta inathraithe s.a. (a.c.). M ada tear ar mhinic ocht an tsol thair de r ir a ch ile. An fhuaim a bh onn le cluinstin, ir onn s iontach gl rach ag a l n minic ochta leithleacha. Scr daitheoir Amh in Marcanna Athmharc 1.40 m Ginead r Comhartha sol thar minic ochta inathraithe s.a. F or 4.1. (a) (i) M nigh an d igh a nd antar na tonnta seasta at ina gc is leis na fuaimeanna gl racha. ___________________________________________________ ___________________________________________________ ___________________________________________________ _________________________________________________ [3] (ii) B onn ceann amh in de na fuaimeanna gl racha seo le cluinstin nuair is 304 Hz an mhinic ocht. Is 340 m s 1 luas fuaime in aer. R omh tonnfhad na toinne fuaime. Tonnfhad = ________________ m [1] (iii) Ar F or 4.1 sceitse il an tonn sheasta a dh antar san fhead n ag minic ocht 304 Hz. [2] (b) Cuirtear g s h iliam san fhead n in it an aeir a bh ann. Is 965 m s 1 luas fuaime i ng s h iliam. R omh osmhinic ocht na fuaime a bheadh de dh th le tonn sheasta a th irgeadh san fh ad n ch anna. Minic ocht = ________________ Hz 6457.03 [2] 5 [Tiontaigh an leathanach 5 (a) Solas monacr matach at i l asar. Cad a chialla onn monacr matach? Scr daitheoir Amh in Marcanna Athmharc _______________________________________________________ _____________________________________________________ [1] (b) Is at in F or 5.1 sceitse de ch iri ch n a bh onn in s id le tonnfhad solais l asar a thomhas. (N l s de r ir sc la) L asar Scolit n D bailte Sc ile n F or 5.1 (i) Cuir s os ar an phatr n a bheidh le feice il ar an sc ile n in F or 5.1. ___________________________________________________ ___________________________________________________ _________________________________________________ [2] 6457.03 6 [Turn over (ii) Is 2.80 m an fad idir na scoilt n agus an sc ile n. T l ir na scoilt n 0.24 mm ar shi l na ch ile. M s 7.4 mm an fad idir uasd ine amh in agus an ch ad uasd ine eile, r omh tonnfhad an tsolais l asair. Scr obh an freagra ina nm. Tonnfhad = ________________ nm Scr daitheoir Amh in Marcanna Athmharc [3] (iii) Agus an l asar c anna in s id, luaigh dh dh igh a bhf adfa an c iri ch n a athr le go m ad fa ar an fhad idir ionaid uasd ine a bh onn le feice il ar an sc ile n. ___________________________________________________ ___________________________________________________ _________________________________________________ [2] 6457.03 7 [Tiontaigh an leathanach 6 Taispe nann F or 6.1 an fhreagairt d ine ar mhinic ocht do chluas an duine. B onn s in s id mar thomhas ar ghl ra inchluinte a mheaitse lann freagairt chluas an duine. Scr daitheoir Amh in Marcanna Athmharc 120 rse 80 ac hn ah 60 is tea 40 ch ta Leibh al d ine/dB tai 100 20 gan a bheith braite braite 0 20 40 1 10 100 1000 10000 100000 Minic ocht/Hz F or 6.1 (a) Luaigh pr omhghn an sc la a fh gann go bhfuil s balta freagairt na cluaise a mheaitse il. _____________________________________________________ [1] (b) T raon tipici il isteachta ag madra 20 Hz go 50 kHz go neasach. (i) Luaigh cos lacht amh in agus difr ocht amh in idir raon minic ochta madra agus raon minic ochta duine. Cos lacht: ___________________________________________________ Difr ocht: _________________________________________________ [2] 6457.03 8 [Turn over (ii) Agus an sc la leibh al d ine/dB do chluas an duine in s id, is 20 dB an leibh al d ine a chomhfhreagra onn do thairseach isteachta madra. Is ogaire cluasa madra ag minic ocht de 5000 Hz. Ar na haise nna in F or 6.1, sceitse il graf de fhreagairt d ine ar mhinic ocht do chluas mhadra. Ba ch ir go mbeadh an cruth c anna ar an chuar is at ar an chuar do chluas an duine in F or 6.1. [2] Scr daitheoir Amh in Marcanna Athmharc (iii) D an cur s os agus tabhair m ni ar an difr ocht maidir leis an d igh a mbraithfeadh duine fuaim dar minic ocht 5000 Hz agus an d igh a mbraithfeadh madra . ___________________________________________________ ___________________________________________________ ___________________________________________________ _________________________________________________ [2] 6457.03 9 [Tiontaigh an leathanach 7 (a) Is iad na pr omh-chomhbhaill de scan ir MRI, an maighn ad scan ra, corna gr d n r imse, tarchurad ir rf, glacad ir rf agus r omhaire. Scr daitheoir Amh in Marcanna Athmharc D an cur s os gairid ar an fheidhm at leis na comhbhaill seo th os. Corna gr d n r imse _______________________________________________________ _______________________________________________________ R omhaire _______________________________________________________ _____________________________________________________ [2] (b) Cuir s os ar an d igh a gcrutha tear r imse maighn adach an mhaighn id scan ra. Laghda odh go m r ar an chostas a bhaineann le t irgeadh an r imse mhaighn adaigh seo mar gheall ar na forbairt is d ana sa teicneola ocht. M nigh c n d igh. _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [3] (c) Cuir s os ar 3 bhunt iste at ag MRI ar scanach n CT. _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [3] 6457.03 10 [Turn over 8 D r tear lampa UV (ultraivialait) ar dhromchla maign isiam. Scr daitheoir Amh in Marcanna Athmharc (a) (i) I gc s solas UV dar tonnfhad 290 nm, taispe in gurb 6.86 10 19 J fuinneamh gach f t in. [2] (ii) Is 1.6 10 4 m2 achar an dromchla maign isiam. B onn 0.034 J fuinnimh sheachadadh chuig gach m adar cearnach gach soicind. R omh an l on f t n a thiteann ar an dromchla gach soicind. An l on f t n = ________________ s 1 [3] (b) Fanann minic ocht an tsolais UV tairiseach agus t fuinneamh na bhf t n ionsaitheach n os m n feidhm oibre an mhaign isiam. (i) Luaigh agus m nigh an ifeacht ar r ta astaithe na bhf taileictreon as d ine na rada ochta n dromchla maign isiam a mh ad . ___________________________________________________ ___________________________________________________ ___________________________________________________ _________________________________________________ [2] (ii) Luaigh an ifeacht ar fhuinneamh cin iteach na bhf taileictreon a asta odh n dromchla maign isiam as d ine na rada ochta a mh ad . ___________________________________________________ ___________________________________________________ _________________________________________________ [1] 6457.03 11 [Tiontaigh an leathanach 9 Deirtear faoi na leibh il fhuinnimh in adaimh go bhfuil siad candamaithe. Scr daitheoir Amh in Marcanna Athmharc (a) Cad a chialla onn an t arma candamaithe? _____________________________________________________ [1] D ine tarchurtha (b) Nuair a th ann rada ocht leictreamaighn adach tr gh s hidrigine, b onn cuid de na minic ochta rada ochta n-ions . Is at in F or 9.1 graf a l ir onn cad mar at an d ine solais a tharchuirtear tr shampla de gh s hidrigine ag brath ar mhinic ocht an tsolais. 6.05 6.10 6.15 Minic ocht 1014/Hz 6.20 F or 9.1 (i) R omh fuinneamh na bhf t n a bhaineann leis an uas-ions ch n at l irithe in F or 9.1. Fuinneamh na bhf t n = ________________ J 6457.03 12 [2] [Turn over (ii) Taispe nann F or 9.2 cuid den l ar id leibh al fuinnimh do hidrigin. Tarraing saighead ar F or 9.2 lena thaispe int cad an trasdul leictreon a tharla onn m ions nn an leictreon f t n a bhfuil an fuinneamh a r omhadh in (b)(i) aige. Scr daitheoir Amh in Marcanna Athmharc 0.85 eV 1.50 eV 3.39 eV 13.6 eV F or 9.2 [3] (c) Is f idir an t arma aisiomp daonra a s id i dtaca le leibh il fhuinnimh na leictreon in adaimh a mb onn solas l asair ast acu. M nigh an chiall at leis an t arma aisiomp daonra. _______________________________________________________ _______________________________________________________ _____________________________________________________ [2] 6457.03 13 [Tiontaigh an leathanach 10 Deirtear faoi dhamhna go bhfuil d acht toinne is c ithn n aige. Scr daitheoir Amh in Marcanna Athmharc (a) M nigh an chiall at leis seo agus cuir s os ar fhianaise thurgnamhach a dheimhn onn go bhfuil air onna toinne ag damhna. _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [3] (b) (i) Cuir s os ar an d igh a nascann foirmle de Broglie n d r c ithn n damhna agus n d r toinne damhna le ch ile. ___________________________________________________ ___________________________________________________ _________________________________________________ [2] (ii) R omh an tonnfhad de Broglie do leictreon at ag gluaiseacht faoi 8% de luas solais. Tonnfhad de Broglie = _____________ m 6457.03 14 [3] [Turn over SEO DEIREADH AN SCR DPH IP IR 6457.03 15 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. 6547.03 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 6457.04 h =p R1Vin R1 + R2

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Additional Info : Gce Physics January 2011 Assessment Unit AS 2, Module 2: Waves, Photons and Medical Physics - Revised (Irish-Medium)
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