Title 9.-P2C9.-Phy.-2nd-Paper-For-FRB-2024_Without-Solve_Sha-29.5.24-PDF.pdf ✅

cigvYyi g‡Wj I wbDwK¬qvi c`v_©weÁvb  Final Revision Batch 1 beg Aa ̈vq cigvYyi g‡Wj I wbDwK¬qvi c`v_©weÁvb Atomic Model & Nuclear Physics Topicwise CQ Trend Analysis UwcK 2016 2017 2018 2019 2022 2023 †gvU wbw`©ó kw3 ͇̄i †Kv‡bv B‡j±a‡bi kw3, †eM I kw3 ͇̄ii e ̈vmva© 2 Ñ Ñ 4 6 2 12 wbDwK¬qv‡mi MVb Ñ Ñ Ñ Ñ 11 3 11 †ZRw ̄ŒqZv Ñ Ñ Ñ Ñ 12 9 12 ÿq 3 5 Ñ 3 1 2 12 Aa©Rxeb 1 2 Ñ Ñ 3 1 6 Mo Rxeb 2 3 Ñ 1 1 1 7 fiÎæwU I eÜb kw3 Ñ 2 2 2 2 3 11 * we.`a.: 2020 mv‡j GBPGmwm cixÿv AbywôZ nqwb, 2021 mv‡j kU© wm‡jev‡m Aa ̈vqwU AšÍfz©3 wQjbv| weMZ mv‡j †ev‡W© Avmv m„Rbkxj cÖkœ 1| a‡iv 1H 3 + 1H 2  2He4 + 0n 1 wdDkb wewμqvi wbM©Z kw3 w`‡q GKwU Avjdv KYv‡K AvNvZ Kiv n‡jv| †`Iqv Av‡Q: [Xv. †ev., w`. †ev. 23] 1H 3 Gi fi = 3.0155 amu 1H 2 Gi fi = 2.0136 amu 2He4 Gi fi = 4.0015 amu wbDUab (n) Gi fi = 1.00867 amu †cÖvUb (p) Gi fi = 1.00758 amu (K) Mo Avqyi msÁv `vI| (L) G· iwk¥ bj †_‡K Drcbœ G· iwk¥i b~ ̈bZg Zi1⁄2‣`N© ̈ H b‡ji K ̈v‡_vW I A ̈v‡bv‡Wi cÖ`Ë wefe cv_©‡K ̈i Dci wbf©i K‡i| e ̈vL ̈v `vI| (M) wdDkvb wewμqvwUi fi ÎæwU wbY©q Ki| DËi: 0.01893 amu (N) wewμqvwU‡Z Drcbœ kw3  KYv‡K m¤ú~Y© fv1⁄2‡Z mÿg n‡e wK bvÑ MvwYwZKfv‡e hvPvB Ki| DËi: E2 > E1, ZvB  KYv‡K m¤ú~Y©fv‡e fv1⁄2‡Z cvi‡e bv| 2| GKLÐ †iwWqv‡gi fi 5g| 1g †iwWqvg ( ) 266 88Ra n‡Z cÖwZ †m‡K‡Û cÖvq 3.7  1010wU cigvYy †f‡1⁄2 hvq| GKRb wkÿv_©x wnmve K‡i ejj 600 eQi c‡iI 2g †iwWqvg Aewkó _vK‡e| [iv. †ev. 23] (K) fi ÎæwU Kv‡K e‡j? (L) A ZX †g.jwU n‡Z GKwU  KYv wbtmiY n‡j †g.jwUi ms‡KZ Kx n‡e? (M) †iwWqv‡gi Aa©vqy wbY©q Ki| DËi: 4.23  1010 s (N) wkÿv_©x e3e ̈ mwVK wK bv? MvwYwZKfv‡e e ̈vL ̈v `vI| DËi: W  2 g wkÿv_©xi gšÍe ̈ mwVK bq| 3| B †g.j 600 A †g.j 0.5N0 N N0 1200 [Kz. †ev. 23] (K) wbDwK¬qvi eÜb kw3 Kv‡K e‡j? (L) wbDwK¬qv‡mi NbZ¡ Gi RbmsL ̈vi Dci wbf©i K‡i bvÑ e ̈vL ̈v Ki| (M) DÏxc‡Ki A †g.‡ji Mo Avqy wbY©q Ki| DËi: 865.617 days (N) A †g.‡ji 60% ÿq n‡Z †h mgq jv‡M, B †g.‡ji 30% ÿq n‡Z GKB jvM‡e wKbv? MvwYwZKfv‡e we‡kølY K‡iv| DËi: t1  t2 `ywUi fvO‡bi †ÿ‡Î wfbœ mgq jvM‡e| 4| Y †ZRw ̄Œq †g.jwUi Aa©vqy 3.82 w`b| j ̈ve ch©‡eÿ‡Y Rvbv †Mj 17.74 w`b ci †g.jwUi 24 25 Ask ÿq nq| [h. †ev. 23] (K) Mo Avqy Kx? (L) NOR gate †K mve©Rbxb gate ejv nq †Kb? (M) DÏxc‡K †g.jwUi 65% ÿq n‡Z KZ mgq jvM‡e? DËi: 5.79 days (N) DÏxc‡Ki ch©‡eÿYwU mwVK wQj wKbv? MvwYwZKfv‡e hvPvB Ki| DËi: t = 17.74 days ch©‡eÿYwU mwVK wQj|
2  HSC Physics 2nd Paper Chapter-9 5| BDwiwbqv‡gi Aa©vqy 700 wgwjqb eQi| wbDUab I BDwiwbqv‡gi msN‡l© †ZRw ̄¿q kw3 wbM©Z nq| hw` fi ̧‡jv 235 92U = 235.0439 amu, 141 56Ba = 140.9139 amu; 92 36K = 91.8973 amu I 1 0 n = 1.0087 amu nq| [1 amu = 1.66044  10–27 kg] [P. †ev. 23] (K) †iwWI AvB‡mv‡Uvc Kx? (L) cigvYy‡Z Ave× B‡jKUa‡bi †gvU kw3 me©`v FYvZ¥K nqÑ e ̈vL ̈v K‡iv| (M) BD‡iwbqv‡gi 40% ÿq n‡Z KZ mgq jvM‡e? DËi: 515.87 milion years (N) DÏxc‡Ki wewμqvq wbM©Z kw3i cwigvY 200 MeV Gi AwaK n‡e wK bv? †Zvgvi DËi MvwYwZK we‡kølY `vI| DËi: E = 202.875 MeV > 200 MeV wewμqvq wbM©Z kw3 200 MeV n‡Z †ewk n‡e| 6| X †ZRw ̄Œq †g.jwUi Aa©vqy 3.82 w`b| j ̈ve ch©‡eÿ‡Y Rvbv †Mj 17.74 w`b c‡i †g.jwUi AÿZ cigvYyi msL ̈v cÖviw¤¢K gv‡bi 1 25 Ask| [e. †ev. 23] (K) ÿq aaæeK Kx? (L) NAND †K mve©Rbxb gate ejv nq †Kb? (M) DÏxc‡K †g.jwUi 85% ÿq n‡Z KZ mgq jvM‡e? DËi: 10.45 days (N) DÏxcK g‡Z ch©‡eÿYwU mwVK wQj wKbv? MvwYwZKfv‡e hvPvB Ki| DËi: t = 17.74 days ; ch©‡eÿYwU mwVK wQj| 7| mywg M‡elYvMv‡i A, B I C wZbwU †ZRw ̄Œq c`v‡_©i bgybv wb‡q cixÿv KiwQj| †Kv‡bv GK g~û‡Z© A I B c`v‡_©i fvO‡bi nvi h_vμ‡g 500 s–1 I 400 s–1 ch©‡eÿY Kij Ges 5 s ci h_vμ‡g 400 s–1 I 300 s–1 ch©‡eÿY Kij| C bgybvi Mv‡q Aa©vqy 36 d †jLv wQj| [wm. †ev. 23] (K) wbDwK¬q eÜbkw3 Kv‡K e‡j? (L) nvB‡Wav‡Rb cigvYyi 1g Kÿc‡_i N~Y©vqgvb B‡jKUa‡bi †eM A‡cÿv 2q Kÿc‡_i N~Y©vqgvb B‡jKUa‡bi †eM KgÑ e ̈vL ̈v K‡iv| (M) C †g.‡ji †ZRw ̄...q ÿqaaæeK wbY©q Ki| DËi: 0.01925 day–1 (N) A I B †g.‡ji †ZRw ̄...qZv mgvb wK bv? MvwYwZKfv‡e we‡kølY Ki| DËi: B > A ; ZvB A I B G †ZRw ̄ŒqZv mgvb bq| 8| GKwU nvB‡Wav‡Rb cigvYy‡Z 13.4 eV kw3i Av‡jv †djv n‡jv Ges me kw3 †kvwlZ n‡jv| D‡jøL ̈ †h, nvB‡Wav‡Rb cigvYy‡Z B‡jKUabwU 1g kw3 ͇̄i Ae ̄’vb KiwQj| †`Iqv Av‡Q, h = 6.63  10–34 Js; 0 = 8.854  10–12 Nm2C –2 ; E1 = –13.6 eV [g. †ev. 23] (K) Zwo”PvjK ej Kv‡K e‡j? (L) †MvjvKvi cwievnxi aviKZ¡ e ̈vmv‡a©i Dci wbf©ikxjÑ e ̈vL ̈v Ki| (M) AvcwZZ Av‡jvi Zi1⁄2‣`N© ̈ A ̈vs÷ag GK‡K wbY©q K‡iv| DËi: 927 A  (N) DÏxc‡Ki nvB‡Wav‡Rb cigvYyi B‡jKUabwUi P‚ovšÍ Ae ̄ vb MvwYwZKfv‡e we‡kølY K‡iv| DËi: n = 8.22  8 DÏxc‡Ki nvB‡Wav‡Rb cigvYyi B‡jKUabwUi P‚ovšÍ Ae ̄’vb n‡e Aóg Kÿc‡_| 9| X Ges Y `ywU †ZRw ̄Œq c`v_©| X c`v_©wUi 1 g †_‡K cÖwZ †m‡K‡Û 3.5  1010 msL ̈K  KYv wbtm„Z nq| X-Gi cvigvYweK fi 226 g| 4000 ermi c‡i Y c`v_©wUi 1 32 Ask Aewkó _v‡K| [g. †ev. 23] (K) AvB‡mv‡Uvc Kv‡K e‡j? (L) ivmvqwbK wewμqv I wbDK¬xq wewμqvi g‡a ̈ cv_©K ̈ †jL| (M) Y c`v_©wUi ÿq aaæeK wbY©q Ki| DËi: 8.664  10–4 year–1 (N) DÏxc‡Ki †Kvb †ZRw ̄...q c`v_©wU AwaKZi ̄ vqx n‡e? hvPvB Ki| DËi: Y > X X c`v_© AwaKZi ̄’vqx n‡e| 10| 2010 mv‡j 10g f‡ii `ywU †ZRw ̄Œq c`v_© wQ‡jv| hvi GKwUi Mo Avqy 12.5 eQi| 2020 mv‡j Ab ̈wUi 8g Aewkó _v‡K| [Xv. †ev. 22; iv. †ev. 22] (K) fiÎæwU Kx? (L) †ev‡ii cigvYy g‡W‡ji mvnv‡h ̈ wKfv‡e iv`vi‡dv‡W©i cigvYy g‡W‡ji mxgve×Zv `~i Kiv n‡q‡Q? e ̈vL ̈v Ki | (M) cÖ_g c`v_©wUi Aa©vqy wbY©q Ki| DËi: 8.664 years (N) 2030 mv‡j Dfq c`v_© mgcwigv‡Y Aewkó _vK‡e wKbv? hvPvB Ki| DËi: W1  W2 ZvB 2030 mv‡j mgcwigvY Aewkó _vK‡e bv| 11| weÁvbxiv j ̈ve‡iUwi‡Z `ywU †ZRw ̄Œq c`v_© †i‡L jÿ ̈ K‡ib †h, c`v_© `yÕwU wb‡¤œi †jLwPÎ Abyhvqx †ZRw ̄Œq wewKiY K‡i: O N0 4 t (year)  25 50 75 100 125 150   N (cigvYy msL ̈v) N0 2 N0 B A B Gi fi NvUwZ = 0.003 amu [Kz. †ev. 22] (K) †ev‡ii cigvYy g‡W‡ji B‡jKUa‡bi †K.wYK fi‡eM msμvšÍ ̄^xKvh© wjL| (L) †Kv‡bv GKwU ̄ vqx wbDwK¬qv‡mi fi I Gi Dcv`vwbK KYv ̧‡jvi gy3 Ae ̄ vi wgwjZ fi mgvb nq bv †Kb? (M) B †g.jwUi eÜb kw3 eV G wbY©q Ki| DËi: 2.8024  106 eV| (N) DÏxcK Abymv‡i A I B †g.‡ji Mo Avqy wK GK n‡e? MvwYwZK we‡køl‡Yi gva ̈‡g gZvgZ `vI| DËi: A  B ; A I B †g.‡ji Mo Avqy GK n‡e bv| 12| GKwU cvigvYweK we`y ̈r‡K‡›`a R¡vjvwb wn‡m‡e weÁvbxiv U-235 e ̈envi K‡i| GK eQi ci cÖwZ †gvj A_©vr 6.02 × 1023 wU cigvYy †f‡O 1.02 × 1023 wU cigvYy AÿZ _v‡K| [h. †ev. 22] (K) †Wvwcs Kx? [Aa ̈vq-10] (L) e ̈wZPv‡ii †ÿ‡Î DrmØq LyeB KvQvKvwQ ivLvi KviY e ̈vL ̈v Ki| [Aa ̈vq-7]
cigvYyi g‡Wj I wbDwK¬qvi c`v_©weÁvb  Final Revision Batch 3 (M) U-235 Gi Aa©vqy wbY©q Ki| DËi: 0.39 year (N) cieZ©x GK eQ‡i †f‡O hvIqv cigvYyi msL ̈v c~e©eZ©x GK eQ‡i †f‡O hvIqv cigvYy msL ̈vi mgvb n‡e wKbvÑ MvwYwZK we‡køl‡Yi gva ̈‡g †`LvI| DËi: cieZ©x GK eQ‡i †f‡1⁄2 hvIqv cigvYyi msL ̈v c~e©eZ©x GK eQ‡i †f‡1⁄2 hvIqv cigvYyi msL ̈vi mgvb n‡e bv| 13| wUawUqv‡gi Aeÿq aaæeK 5.54 × 10–2 y –1 [P. †ev. 22] (K) ÿq aaæeK Kv‡K e‡j? (L) †ZRw ̄...q ÿq m~Î e ̈vL ̈v Ki| (M) DÏxc‡K cÖ`Ë wUawUqv‡gi 64% ÿq n‡Z KZ mgq jvM‡e? DËi: 18.44 years (N) DÏxc‡K cÖ`Ë †ZRw ̄...q †g.jwUi Aa©vqy A‡cÿv Mo Avqy †ewkÑ mZ ̈Zv hvPvB Ki| DËi: T1 2 = 12.509 year;  = 18.05 year ;  > T1 2 14| [e. †ev. 22] †g.j fimsL ̈v †cÖvUb msL ̈v wbDwK¬qv‡mi fi (amu) Fe 56 26 56 U 235 92 235.0439 w ̄’i Ae ̄’vq †cÖvU‡bi fi = 1.00728 amu, wbDUa‡bi fi 1.00876 amu, 1 amu f‡ii mgZzj ̈ kw3 931 MeV| (K) wbDwK¬qvi wdkb Kv‡K e‡j? (L) Avjdv iwk¥ Zwor‡ÿÎ Øviv wePz ̈Z nq wKš‧ Mvgv iwk¥ nqbvÑ e ̈vL ̈v Ki| (M) BD‡iwbqv‡gi fiÎæwU wbY©q Ki| DËi: BD‡iwbqv‡gi fiÎæwU 1.8785 amu (N) DÏxc‡Ki ewY©Z `ywU †g.‡ji †KvbwU †_‡K GKwU wbDwK¬qb †ei Kiv mnR n‡e? MvwYwZK we‡kølYmn †`LvI| DËi: ewY©Z `ywU †g.‡ji g‡a ̈ U 235 †_‡K GKwU wbDwK¬qb †ei Kiv mnR n‡e| 15| wUawUqvg GKwU †ZRw ̄Œq c`v_©| GwU cÖwZwbqZ ÿq n‡”Q| wUawUqv‡gi Aa©vqy 12.5 eQi| [wm. †ev. 22] (K) wbDwK¬qvm Kv‡K e‡j? (L) cigvYyi kw3 ͇̄ii kw3 FYvZ¥K †Kb? e ̈vL ̈v Ki| (M) 25 eQi ci GKwU wbw`©ó wUawUqvg e ̄ÍL‡Ði KZ Ask Aewkó _vK‡e? wbY©q Ki| DËi: 25 eQi ci GKwU wUawUqvg L‡Ði 1 4 Ask Aewkó _vK‡e| (N) wUawUqv‡gi 50% ÿq n‡Z †h mgq jv‡M Zv Zvi Mo Avqy A‡cÿv †ewk bv Kg n‡e MvwYwZKfv‡e we‡kølYc~e©K gZvgZ `vI| DËi: wUawUqv‡g 50% ÿq n‡Z †h mgq jv‡M Zv Zvi Mo Avqy A‡cÿv Kg n‡e| 16| [w`. †ev. 22] n = 4 – 0.85 eV n = 3 – 1.5 eV n = 2 – 3.4 eV n = 1 – 13.6 eV A B C wP‡Î nvB‡Wav‡Rb cigvYyi kw3 ̄Íi †`Lv‡bv Av‡Q Ges B‡jKUab ̄’vbvšÍ‡ii A, B Ges C wZbwU avc †`Lv‡bv n‡q‡Q †hb †Kv‡bv GKwU n‡Z 6513Å Zi1⁄2‣`‡N© ̈i †dvUb KYv wbM©Z nq| [c = 3 × 108 ms–1 , h = 6.6 × 10–34 Js] (K) Mo Avqy Kv‡K e‡j? (L) GKwU wbDwK¬qv‡mi ̄ vwqZ¡ wbf©i K‡i wbDwK¬qb cÖwZ eÜbkw3i DciÑ e ̈vL ̈v Ki| (M) n = 2 kw3 ͇̄i B‡jKUa‡bi †eM wbY©q Ki| DËi: 1.095  106 m/s (N) DÏxc‡Ki cÖ`Ë Zi1⁄2‣`‡N© ̈i †dvUb KYv wbtmi‡Yi Rb ̈ A, B Ges C Gi g‡a ̈ †KvbwU `vqxÑ MvwYwZKfv‡e we‡kølY K‡i †Zvgvi wm×všÍ `vI| DËi:D3 †dvUb wbmi‡Yi Rb ̈ B av‡ci B‡jKUab ̄’vbvšÍi `vqx| 17| GKwU D‡ËwRZ cigvYyi B‡jKUab 4_© kw3 ̄Íi n‡Z 2q kw3 ͇̄i wd‡i Avmvi mgq Zwor Pz¤^Kxq wewKiY N‡U| B‡jKUa‡bi fi I Avavb h_vμ‡g 9.11 × 10–31 kg I –1.6 × 10–19 C| k~b ̈ ̄’v‡bi †f`b †hvM ̈Zv 8.854 × 10–12 C 2N –1m –2 Ges cøvs‡Ki aaæe‡Ki gvb 6.63 × 10–34 Js| `„k ̈gvb Av‡jvi Zi1⁄2mxgv 4 × 10–7 m †_‡K 8 × 10–7 m| [g. †ev. 22] (K) †ZRw ̄...q c`v‡_©i ÿq aaæeK Kv‡K e‡j? (L) †h wbDwK¬qv‡mi Mo eÜbkw3 †ewk Zvi ̄ vwqZ¡Kvj †ewkÑ †Kb? (M) wØZxq kw3 ͇̄i B‡jKUa‡bi Kÿc‡_i e ̈vmva© wbY©q Ki| DËi: 2.13 × 10–10 m (N) DÏxc‡K DwjøwLZ Zwor Pz¤^Kxq wewKiY `„k ̈gvb n‡e wK-bvÑ MvwYwZKfv‡e we‡kølY Ki| DËi: wewKiY Zi1⁄2 `„k ̈gvb n‡e 18| GKwU nvB‡Wav‡Rb cigvYyi B‡jKUab – 1.5 eV kw3, Ae ̄’v n‡Z – 3.4 eV kw3 Ae ̄’vq Av‡m| [c = 3 × 108 ms–1 h = 6.63 × 10–34 Js, 1eV = 1.6 × 10–19J, `„k ̈gvb Av‡jvi Zi1⁄2‣`‡N© ̈i cvjøv 4 × 10–7 m n‡Z 8 × 10–7 m] [Xv. †ev. 19] (K) m~Pb K¤úv1⁄4 Kv‡K e‡j? [Aa ̈vq-8] (L) †Kv‡bv e ̄‧i †eM †dvU‡bi †e‡Mi mgvb n‡Z cv‡i bvÑ e ̈vL ̈v Ki| [Aa ̈vq-8] (M) f~wg Ae ̄ vi kw3 – 13.6 eV n‡j B‡jKUab cÖ_‡g †Kvb kw3 ͇̄i wQj? DËi: 3q kw3 ͇̄i (N) wbtmwiZ wewKiYwU `„k ̈gvb n‡e wK? hvPvB Ki| DËi: wbtmvwiZ wewKiYwU `„k ̈gvb n‡e| 19| [iv. †ev. 19] 1g 2q 3q   4_© Kÿc_ Dc‡ii wP‡Î Av‡jv‡K Zwor cixÿvq GKwU cigvYyi PZz_© Kÿc_ n‡Z GKwU B‡jKUab 3q Kÿc‡_ wd‡i Av‡m| d‡j GKwU †dvUb wbM©Z nq| D‡jøL ̈ †h, cøv‡1⁄4i aaæe‡Ki gvb, B‡jKUa‡bi fi, B‡jKUa‡bi PvR© Ges k~b ̈ ̄’v‡bi †f`b‡hvM ̈Zvi gvb h_vμ‡g 6.63 × 10–34 Js, 9.1 × 10–31 kg, 1.6 × 10–19 C Ges 8.854 × 10–12 C 2N –1 m –2 |
4  HSC Physics 2nd Paper Chapter-9 (K) †jcUb KYv Kx? [Aa ̈vq-11] (L) GKwU UavbwR÷v‡ii †em-BwgUvi evqvwms wK iKg nIqv DwPr? e ̈vL ̈v Ki| [Aa ̈vq-10] (M) 3q Kÿc‡_i e ̈vmva© KZ n‡e? DËi: 4.78 × 10–10 m (N) DÏxc‡Ki Z_ ̈ g‡Z wewKwiZ †dvU‡bi Av‡jv †`Lv hv‡e Kx? MvwYwZKfv‡e we‡kølY K‡i †Zvgvi gZvgZ `vI| DËi: wewKwiZ †dvU‡bi Av‡jvi Zi1⁄2‣`N© ̈ `„k ̈gvb Zi1⁄2‣`‡N© ̈i †_‡K †ewk nIqvq Zv †`Lv hv‡e bv| 20| 235 92 U I 141 56Ba wbDwK¬qvm؇qi fi h_vμ‡g 236.0526 amu I 140.9139 amu| †cÖvUb I wbDUa‡bi fi h_vμ‡g 1.007277 amu I 1.008665 amu. [1 amu = 1.66 × 10–27 kg] [Kz. †ev. 19] (K) †ZRw ̄...q ÿq m~ÎwU wjL| (L) Bqs Gi wØ-wPo cixÿvq wPo؇qi e ̈eavb ̄^í nIqv cÖ‡qvRb †Kb? e ̈vL ̈v Ki| [Aa ̈vq-7] (M) 235 92U Gi fiÎæwU wbY©q Ki| DËi: 0.855979 amu (N) wbDwK¬qb cÖwZ eÜbkw3 ebvg fimsL ̈v †jLwP‡Î †Kvb wbDwK¬qvmwU Dc‡i Ae ̄ vb Ki‡e? MvwYwZKfv‡e we‡kølY Ki| DËi: Ba 21| [h. †ev. 19] 0.37N0 N N0 0.57N A 0 B J T1 2 mgq t  Dc‡ii wP‡Î mg‡qi mv‡c‡ÿ AÿZ †ZRw ̄Œq cigvYyi cwieZ©b †`Lv‡bv n‡jv| (K) Aa©cwievnxi msÁv `vI| [Aa ̈vq-10] (L) †Wvwcs Ki‡j Aa© cwievnxi cwievwnZv e„w× cvq †Kb? [Aa ̈vq-10] (M) DÏxc‡Ki †ZRw ̄...q c`v‡_©i Aeÿq aaæeK 4.02×10–4 s –1 n‡j KZ mgq c‡i D3 cigvYy Avw` cigvYyi GK- cÂgvsk n‡e? DËi: 4003.5 eQi mgq cÖ‡qvRb n‡e| (N) DÏxc‡Ki †ZRw ̄...q c`v_©wUi Mo Avqyi mgvb mg‡qi ci Zvi AÿZ cigvbyi msL ̈v B we›`y‡Z n‡e wK bv? MvwYwZK we‡køl‡Y †`LvI| DËi: AÿZ cigvbyi msL ̈v †jLwP‡Îi B we›`y‡Z n‡e| 22| nvB‡Wav‡Rb cigvYyi Aby‡gvw`Z wØZxq †Kvqv›Uvg Kÿ n‡Z cÖ_g †Kvqv›Uvg K‡ÿ B‡jKUab hvIqvi Rb ̈ †dvUb wbM©Z nq| [e = 1.6 × 10–19 C, m = 9.1 × 10–31 kg, h = 6.63 × 10–34 J-s, 0 = 8.85 × 10–12 C 2 N –1 m –2 ] [P. †ev. 19] (K) ‘1’ (GK) iv`vi‡dvW© Kx? (L) GbvjM c×wZ Gs wWwRUvj c×wZ GK bv wfbœ? e ̈vL ̈v Ki| [Aa ̈vq-10] (M) nvB‡Wav‡Rb cigvYyi wØZxq †evi K‡ÿi e ̈vmva© wbY©q Ki| DËi: 2.13 × 10–10 m (N) DÏxc‡Ki nvB‡Wav‡Rb cigvYyi wØZxq Kÿc‡_ †_‡K cÖ_g Kÿc‡_ B‡jKUab hvIqvi d‡j wbtm„Z wewKiY wK †Pv‡L †`Lv hv‡e? MvwYwZKfv‡e hvPvB Ki| DËi: D3 wbtm„Z wewKiY †Pv‡L †`Lv hv‡e bv| 23| wZbwU †ZRw ̄Œq c`v_© A, B I C Gi cÖviw¤¢K fi 30 gm| cixÿvMv‡i †i‡L †`qvi 3 eQi ci G‡`i Aewkó fi h_vμ‡g 7.5 gm, 4.8 gm I 19.2 gm cvIqv †Mj| [e. †ev. 19] (K) kv›U Kv‡K e‡j? [Aa ̈vq-3] (L) †Kv‡bv †MvjvKvi cwievnxi Avavb 4 ̧Y Kiv n‡j Gi Pv‡R©i Zj Nb‡Z¡i cwieZ©b Kxiƒc n‡e? [Aa ̈vq-2] (M) C †g.jwUi Mo Avqy wbY©q Ki| DËi: 6.71 years (N) A †g.‡ji 30% Ges B †g.‡ji 24% ÿq n‡Z mgvb mgq jvM‡e wKbv MvwYwZKfv‡e hvPvB Ki| DËi: ÿq n‡Z wfbœ wfbœ mgq jvM‡e| 24| f~wg Ae ̄’vq nvB‡Wav‡Rb cigvYyi B‡jKUa‡bi kw3 – 13.6 eV| f~wg Ae ̄’vi B‡jKUab‡K 8.2 × 1014 Hz K¤úv‡1⁄4i GKwU †dvUb Øviv AvNvZ Kiv n‡jv| GLv‡b me = 9.1 × 10–31 kg, e = 1.6 × 10–19 C, h = 6.63 × 10–34 Js Ges 0 = 8.85 × 10–12 C 2N –1m –2 | [wm. †ev. 19] (K) Zwor wefe Kx? [Aa ̈vq-2] (L) mKj K¤úv‡1⁄4i Av‡jvi Rb ̈ d‡UvZwor wμqv m¤úbœ nq bvÑ e ̈vL ̈v Ki| [Aa ̈vq-8] (M) wØZxq Kÿc‡_i e ̈vmva© wbY©q Ki| DËi: 2.12 × 10–10 m (N) †dvUb Øviv AvNv‡Zi ci B‡jKUabwUi wK N‡UwQj MvwYwZK we‡kølYmn gZvgZ `vI| DËi: †dvUb Øviv AvNv‡Zi ci B‡jKUabwUi wKQzB NU‡e bv| 25| 2.26 NÈv Aa©vqywewkó †ZRw ̄Œq Av‡qvwWb AvB‡mv‡Uvc wPwKrmvwe` ̈vq †ivM wbY©‡q e ̈eüZ nq| †Kv‡bv GKRb †ivMxi †ivM wbY©‡qi Rb ̈ Zvi kix‡i 15 g †ZRw ̄Œq Av‡qvwWb AvB‡mv‡Uvc cÖ‡ek Kiv‡bv n‡jv| wVK 24 NÈv c‡i Avevi Zvi kix‡i Av‡qvwW‡bi Dcw ̄’wZ wbY©q Kiv n‡jv| [w`. †ev. 19] (K) wWwRUvj †fv‡ëR ms‡KZ Kx? [Aa ̈vq-10] (L) AYyexÿY h‡š¿ P~ovšÍ weea©K FYvZ¥KÑ e ̈vL ̈v Ki| [Aa ̈vq-6] (M) Av‡qvwW‡bi ÿq aaæeK wbY©q Ki| DËi: 0.307 h–1 (N) 24 NÈv c‡i †ivMxi kix‡i kZKiv KZ Ask Av‡qvwWb _vK‡e? MvwYwZKfv‡e we‡kølY Ki| DËi: W W0  100% = 0.063% 24 h c‡i 0.063% Av‡qvwWb Aewkó _vK‡e| 26| GKwU 92U 235 wdkb wewμqvq wbM©Z kw3 GKwU 26Fe56 †K AvNvZ K‡i| wdkb wewμqvwU wb¤œiƒc:Ñ 92U 235 + 0n 1  56Ba141 + 36Kr92 + 30n 1 + kw3| [U235 Gi fi = 235.04 amu; Ba141 Gi fi = 140.91 amu, Kr92 Gi fi = 91.91 amu, n1 Gi fi = 1.008 amu, 26Fe56 Gi fi = 55.9349 amu, †cÖvU‡bi fi = 1.0072 amu; 1 amu = 931.5 MeV] [iv. Kz. P. e. (mw¤§wjZ) †ev. 18] (K) ÿq aaæe‡Ki msÁv `vI| (L) †evi wKfv‡e iv`vi‡dvW© g‡Wj ms‡kvab K‡iwQ‡jb?