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

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So nr N a o ua ch t Uimhir L rionaid 71 Uimhir Iarrth ra ADVANCED SUBSIDIARY General Certificate of Education January 2010 Fisic ag meas n Mod l 2: Tonnta, F t in agus Fisic Mh ochaine AY121 Aonad Meas naithe AS 2 [AY121] D LUAIN 18 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 na ceisteanna uile. 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 5366.03 1 (a) Taispe nann F or 1.1 graif dh l ithri ch in ar am do dh thonn A agus B. Scr daitheoir Amh in Marcanna Athmharc D l ithri ch n/cm 4 Tonn A 2 0 2 4 6 8 10 Am/n im Tonn B 2 4 F or 1.1 (i) Luaigh aimpliti id A. Aimpliti id = ___________ cm [1] (ii) R omh minic ocht Thonn A. Minic ocht = _____________ Hz 5366.03 [2] 2 [Turn over (b) An bhfuil na graif in F or 1.1 ina gcuidi na tonnta a rang mar thrasnach? M nigh do fhreagra. Scr daitheoir Amh in Marcanna Athmharc _______________________________________________________ _______________________________________________________ _____________________________________________________ [1] (c) (i) N l tonnta A agus B i gcomhphas. M nigh cad a chialla onn i gcomhphas. ___________________________________________________ ___________________________________________________ _________________________________________________ [1] (ii) Cad an phasdifr ocht idir tonn A agus tonn B? Pasdifr ocht = ________ 5366.03 [3] 3 [Tiontaigh an leathanach San it ar cu sin sa cheist seo, ba ch ir duit do fhreagra a thabhairt i bpr s lean nach. Meas n far th ar chaighde n na cumars ide scr ofa. 2 Scr daitheoir Amh in Marcanna Athmharc Cuir s os ar thurgnamh le fad f casach lionsa inr imnigh a fh il. Ba ch ir go mbeadh na ruda seo a leanas i do fhreagra (a) l ar id l nlip adaithe den fhearas at beartaithe agat a s id, [1] (b) cuntas gearr ar an mhodh a s ideadh, [3] (c) na tortha at le glacadh, [1] (d) anail s ar an d igh ar f idir na tortha a s id le luach a fh il d fhad f casach an lionsa inr imnigh. [2] Caighd an na cumars ide scr ofa [2] _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ 5366.03 4 [Turn over Scr daitheoir Amh in _______________________________________________________ Marcanna Athmharc _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ 5366.03 5 [Tiontaigh an leathanach 3 Taispe nann F or 3.1 an iml ne ABCD de bhloc dronuilleogach a rinneadh as gloine dar comh ifeacht athraonta 1.46. A Scr daitheoir Amh in Marcanna Athmharc D 41.4 75.0 B C F or 3.1 T ga solais ionsaitheach ar uillinn ionsaithe de 75.0 ar shlios AB. Is 41.4 an uillinn athraonta don gha seo. Buaileann an ga athraonta le haghaidh AD. (a) R omh uillinn ionsaithe an gha seo nuair a bhuaileann s le haghaidh AD. Uillinn ionsaithe = ____________ [1] (b) R omh an uillinn chritici il do gha sa ghloine seo ag bualadh leis an teorainn ghloine/aeir. (Cuimhnigh: is 1.46 comh ifeacht athraonta na gloine.) Uillinn chritici il = ____________ 5366.03 [2] 6 [Turn over (c) s id do fhreagra ar (i) agus (ii) lena fh il amach cad a tharl idh don gha nuair a bhuaileann s le haghaidh AD. Scr daitheoir Amh in Marcanna Athmharc _____________________________________________________ [1] (d) Ar F or 3.1 lean de chonair an gha go mbeidh s imithe amach as an bhloc gloine. [1] 5366.03 7 [Tiontaigh an leathanach 4 T solas monacr matach ionsaitheach ar scoilt n caol S1 mar a thaispe ntar in F or 4.1. I ndiaidh don solas dul tr S1 titeann s ar na scoilt n caola S2 agus S3. I ndiaidh don solas dul tr S2 agus S3 t trasna ocht sa r igi n taobh amuigh de sin. Scr daitheoir Amh in Marcanna Athmharc S2 S1 S3 Sc ile n F or 4.1 (a) (i) Cad a chialla onn an t arma trasna ocht? ___________________________________________________ _________________________________________________ [1] (ii) C n riocht riachtanach a chaithfidh a bheith ann do phatr n trasna ochta? ___________________________________________________ _________________________________________________ [1] (iii) C n riocht eile ba ch ir a bheith ann le go mbeidh codarsnacht mhaith ann idir na frains geala agus na frains dorcha sa phatr n? ___________________________________________________ ___________________________________________________ _________________________________________________ [1] 5366.03 8 [Turn over (b) Bogtar an sc ile n n os c ngara do na scoilt n anois sa d igh nach bhfuil an fad idir an sc ile n agus scoilt n S1 agus S2 ach cothrom le leathchuid a luacha roimhe. Luaigh agus m nigh dh dhifr ocht idir an patr n trasna ochta at le breathn ar an sc ile n anois agus an patr n a bh ann ar dt s. 1. Scr daitheoir Amh in Marcanna Athmharc Difr ocht ____________________________________________ M ni _______________________________________________ ___________________________________________________ ___________________________________________________ 2. Difr ocht ____________________________________________ M ni _______________________________________________ ___________________________________________________ _________________________________________________ [4] 5366.03 9 [Tiontaigh an leathanach 5 Ag pointe X, 20 m ar shi l challaire, is 9.9 10 5 Wm 2 d ine na fuaime. Scr daitheoir Amh in Marcanna Athmharc (a) R omh leibh al d ine na fuaime ag X. Leibh al d ine = ________________ dB [3] (b) Aimpl tear fuaim n challaire anois. Mar gheall air seo, m ada tear ar leibh al d ine na fuaime ag X de 6.0 dB n luach a fuarthas in (a). (i) R omh an leibh al d ine nua fuaime ag X. Leibh al d ine = ________________ dB [1] (ii) R omh an facht ir comhfhreagrach faoina m ada tear an d ine fuaime ag X. Facht ir = ________________ 5366.03 [2] 10 [Turn over 6 Rinne mac l inn turgnamh le luas fuaime in aer a r omh ag baint s ide as fead n athshondais. Taispe nann F or 6.1 c iri ch n an turgnaimh. Scr daitheoir Amh in Marcanna Athmharc Callaire Ginead ir comhartha Fead n athshondais Uisce F or 6.1 Shocraigh an mac l inn diail an ghinead ra comhartha ag 200Hz agus chuir s an ginead ir ar si l. (a) Cuir s os go hachomair ar an mhodh oibre a chaithfidh an mac l inn a s id le c ad shu omh an athshondais a fh il. _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [2] 5366.03 11 [Tiontaigh an leathanach (b) (i) M s 38cm fad an chol in aeir a fuair an mac l inn do ch ad shu omh an athshondais, r omh an luas fuaime in aer. Luas fuaime _____________ m s 1 Scr daitheoir Amh in Marcanna Athmharc [3] (ii) Bheadh s ina dhea-chleachtas turgnamhach d nd anfadh an mac l inn an turgnamh ar s do mhinic ochta eile. M nigh cad chuige. ___________________________________________________ ___________________________________________________ _________________________________________________ [1] (iii) Leis an dara minic ocht a fh il, choigeartaigh an mac l inn an socr ar an ghinead ir comhartha. Ar an drochuair, choigeartaigh s an diail chontr ilte ar an ghinead ir comhartha agus chas s diail a mh adaigh luach na minic ochta de dheich. Bheadh s doiligh, mar sin, l amh a ghlacadh do ch ad shu omh an athshondais. M nigh cad chuige. ___________________________________________________ ___________________________________________________ _________________________________________________ [2] 5366.03 12 [Turn over 7 Is f idir ultrafhuaim a s id le scr duithe neamhionracha a dh anamh ar strucht ir inmhe nacha chorp an duine. I gc s ceann amh in de na scr duithe seo b onn scanach in ultrasonacha A in s id le ti s cn imhe a fh il. Frithchaitear b og ultrafhuaime go p irteach ag dromchla tosaigh na cn imhe agus ar s ansin ag dromchla c il na cn imhe. Tionta tear na macalla b ge n chn mh ina gcomhartha leictreacha a l ir tear ar sc ile n CRO. An t-aschur ar an sc ile n a leanann as seo, taispe ntar in F or 7.1 mar a seasann an bh og at lip adaithe X don ch ad fhrithchaitheamh agus mar a seasann Y don dara frithchaitheamh. Scr daitheoir Amh in Marcanna Athmharc X Y 8 cm F or 7.1 Is ag 1 s in aghaidh cm a shocra tear an t-ambhonn ar an CRO. (a) (i) Is m aimpliti id b og X n b og Y. M nigh cad chuige. ___________________________________________________ ___________________________________________________ _________________________________________________ [2] (ii) M s 4000 ms 1 luas ultrafhuaime i gcn mh, r omh ti s na cn imhe. Ti s = ___________ cm 5366.03 [3] 13 [Tiontaigh an leathanach (b) Cine l eile ultrafhuaime a s idtear in omh is ea an B-scanach n d thoiseach. Scr daitheoir Amh in Marcanna Athmharc (i) Luaigh dh dh igh a bhfuil an teicn c don B-scanach n difri il leis an teicn c don A-scanach n. ___________________________________________________ ___________________________________________________ _________________________________________________ [2] (ii) Cuir s os go hachomair ar dh igh amh in a n- s idtear an B-scanach n i gc rsa m ochaine agus ar an fhaisn is is f idir a fh il n n s imeachta. ___________________________________________________ ___________________________________________________ _________________________________________________ [2] 5366.03 14 [Turn over 8 Nuair at rada ocht leictreamaighn adach dar tonnfhad irithe ionsaitheach ar dhromchla glan miotail, scaoiltear f taleictreoin. Scr daitheoir Amh in Marcanna Athmharc (a) M nigh an f th a scaoiltear na f taleictreoin. _______________________________________________________ _____________________________________________________ [2] (b) Is 1.85 eV feidhm oibre an mhiotail. (i) Cad a chialla onn an t arma feidhm oibre? ___________________________________________________ _________________________________________________ [2] (ii) Tiontaigh an luach seo don fheidhm oibre ina ghi il. Feidhm oibre = _________________ J [1] (iii) R omh an osmhinic ocht de rada ocht ionsaitheach le go scaoilfear f taleictreoin. Minic ocht = _________________ Hz 5366.03 15 [2] [Tiontaigh an leathanach 9 Is sa bhunstaid at an leictreon in adamh hidrigine irithe. Is f idir a fhloscadh chuig leibh al is airde fuinnimh tr fhuinneamh a ions rada ocht ionsaitheach dar tonnfhad cu . Scr daitheoir Amh in Marcanna Athmharc (a) (i) Cad is leibh al fuinnimh ann? ___________________________________________________ _________________________________________________ [1] (ii) Cad a chialla onn sa bhunstaid ? ___________________________________________________ _________________________________________________ [1] (b) Taispe nann F or 9.1 an d leibh al fuinnimh is sle don adamh hidrigine. 3.34 eV 13.6 eV F or 9.1 (i) Cad chuige a bhfuil na leibh il fuinnimh di ltach? ___________________________________________________ ___________________________________________________ ___________________________________________________ _________________________________________________ [2] 5366.03 16 [Turn over (ii) R omh an tonnfhad don rada ocht ionsaitheach a fhloscfaidh an leictreon sa bhunstaid chuig an ch ad leibh al fuinnimh eile. Tonnfhad = ________________ m Scr daitheoir Amh in Marcanna Athmharc [3] (c) Nuair at a leictreon sa bhunstaid, n ions faidh hidrigin solas infheicthe. M nigh cad chuige. _______________________________________________________ _____________________________________________________ [2] 5366.03 17 [Tiontaigh an leathanach 10 Is f idir feinim in tonnta leictreamaighn adacha a mh ni leis an tsamhail toinne, leis an tsamhail f t in n leis an d cheann acu. Scr daitheoir Amh in Marcanna Athmharc (a) Luaigh feinim an amh in, seachas d raonadh, nach f idir a mh ni ach leis an tsamhail toinne. ________________________ [1] (b) (i) L ir onn d raonadh leictreon gur f idir le leictreoin bheith ag feidhmi mar thonnta. Cuir s os ar an d igh ar f idir seo a thaispe int go turgnamhach. M s mian leat, tig leat l ar id a tharraingt sa sp s th os le cuidi leis an chur s os. ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ _________________________________________________ [3] (ii) D an cur s os agus tabhair m ni ar an ifeacht a bheidh ann ar phatr n d raonadh na leictreon m t treoluas is l faoi na leictreoin ionsaitheacha. ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ _________________________________________________ [3] 5366.03 18 [Turn over 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. 5366.03

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