Title physics 2017.pdf ✅

28 28 XvKv †evW© 2017 welq ˆKvW : 1 3 6 mgq : 25 wgwbU c`v_©weÁvb eûwbe©vPwb Afxÿv c~Y©gvb : 25 [we. `a. : mieivnK...Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi μwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/ m‡e©vrK...ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|] 1. wbDU‡bi †Kvb m~Î †_‡K e‡ji cwigvc Kiv hvq? K 1g m~Î L 2q m~Î M 3q m~Î N 1g I 3q m~Î 2. c~Y© Af ̈šÍixY cÖwZdj‡bi kZ©- i. Av‡jvK iwk¥ Nb †_‡K nvjKv gva ̈‡gi w`‡K hvq ii. AvcZb †KvY > μvwšÍ †KvY iii. AvcZb †KvY = cÖwZdjb †KvY wb‡Pi †KvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 3. wP‡Î †Pv‡Li ÎæwUwU †Kvb ai‡bi? K gvBIwcqv L ivZKvbv M †iwUbv m‡i hvIqv N nvBcvi‡g‡Uavwcqv 4. †Kv‡bv e ̄‘i fi m, Av‡cwÿK Zvc S Ges ZvcaviY ÿgZv C n‡j wb‡Pi †KvbwU mwVK? K C = S m L S = m C M S = Cm N S = C m 5. wb‡Pi †Kvb ZvcgvÎvq cvwbi NbZ¡ me‡P‡q †ewk? K 4 K L 273 K M 277 K N 278 K 6. 20 °C ZvcgvÎvq GKwU B ̄úv‡Zi Zv‡ii ˆ`N© ̈ 100 m| 50 °C ZvcgvÎvq Gi ˆ`N© ̈ 100.033 m n‡j B ̄úv‡Zi ˆ`N© ̈ cÖmviY mnM KZ n‡e? K 11 ́ 10-6 K-1 L 22 ́ 10-6 K-1 M 33 ́ 10-6 K-1 N 44 ́ 10-6 K-1 7. 12 V Es + - Dc‡ii wP‡Î np = 10 Ges ns = 50 Es Gi gvb KZ †fvë? K 0 L 12 M 50 N 60 8. [email protected] wVKvbvwU wb‡¤œi †KvbwU? K d ̈v· A ̈v‡Wam L B›Uvi‡bU A ̈v‡Wam M B-†gBj A ̈v‡Wam N wR-†gBj A ̈v‡Wam 9. †Kvb `yÕRb weÁvbx Avwe®‹vi K‡ib †h ÁwbDwK¬qvm wdkb‡hvM ̈Ó? K I‡Uvnvb I †÷amg ̈vb L wbjm †evi I Av‡b©÷ iv`vi‡dvW© M wc‡q‡i Kzwi I gv`vg Kzwi N g ̈v· cø ̈v1⁄4 I AvjevU© AvBb÷vBb 10. w ̄úÖs wbw3 Øviv e ̄‘i Kx cwigvc Kiv nq? K fi L AwfKl©R Z¡iY M AwfKl©R ej N Nl©Y ej 11. wb‡Pi †Kvb †jLwU mg‡eM wb‡`©k K‡i? K S t L t M S t N S t 12. †Kv‡bv e ̄‘i Dci cÖhy3 ej aaæe n‡j- i. fi Kg n‡j Z¡iY †ewk n‡e ii. fi Kg n‡j Z¡iYI Kg n‡e iii. fi †ewk n‡j Z¡iY Kg n‡e wb‡Pi †KvbwU mwVK? K ii L i I ii M i I iii N ii I iii 13. 54 km h-1 mgvb KZ m s-1 ? K 12 L 15 M 20 N 25 14. GKwU e ̄‘i fi 2 kg Ges Avw`‡eM 5 m s -1 , 3 s ci e ̄‘wUi †eM 8 m s-1 n‡j e ̄‘i Dci cÖhy3 ej KZ wbDUb n‡e? K 1 L 2 M 3 N 4 n wb‡¤œi wPÎ n‡Z 15 I 16bs cÖ‡kœi DËi `vI : 15. R †_‡K gy3fv‡e cošÍ e ̄‘ Q- †Z †cuŠQ‡j MwZkw3 KZ n‡e? m R Q P h x K 0 L mgx M mgh N mg(h - x) 16. m f‡ii e ̄‘‡K R †_‡K gy3fv‡e co‡Z w`‡j- i. e ̄‘wU‡Z MwZ mÂvi n‡e ii. MwZkw3 wefe kw3‡Z iƒcvšÍwiZ n‡e iii. AwZμvšÍ `~iZ¡ evo‡j †eM evo‡e wb‡Pi †KvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 17. GKwU †gvUi 2 kg f‡ii e ̄‘ 5 m D”PZvq D‡Ëvjb Ki‡Z †gvU 107 J kw3 e ̈q K‡i‡Q| †gvUiwU‡Z †gvU KZ kw3 AcPq n‡”Q? K 6 J L 9 J M 10 J N 49 J 18. wb‡Pi †KvbwUi GKK NC-1 ? K Zwor ÿgZv L k‡ãi ZxeaZv M k‡ãi ZxÿèZv N Zwor ZxeaZv 19. AcwUK ̈vj dvBevi Gi Avei‡Yi cÖwZmiYv1⁄4 KZ? K 1.50 L 1.55 M 1.70 N 1.77 20. EXAMINATION †jLwUi we¤^ mgZj `c©‡Y †`L‡j KqwU e‡Y©i †Kv‡bv cwieZ©b n‡e bv? K 5 L 7 M 8 N 9 21. kw3i gvÎv †KvbwU? K MLT-2 L MLT2 M ML-2T 2 N ML2T -2 n DÏxc‡Ki Av‡jv‡K 22 I 23bs cÖ‡kœi DËi `vI : I 2W A 4W B 4W 6V I1 I2 22. A I B Gi g‡a ̈ †fv‡ëR KZ? K 2 V L 3 V M 4 V N 6 V 23. DÏxc‡Ki eZ©bxi cÖev‡ni †ÿ‡Î- i. I = I1 = I2 ii. I1 = I2 iii. I > I2 wb‡Pi †KvbwU mwVK? K i L i I ii M i I iii N ii I iii 24. wb‡Pi †Kvb c`v_©wUi Dci Pvc e„w× Ki‡j Mjbv1⁄4 ev‡o? K eid L XvjvB †jvnv M †gvg N A ̈vw›Ugwb 25. wb‡¤œi †KvbwUi mvnv‡h ̈ gvbe kix‡ii wewfbœ A‡1⁄2i wÎgvwÎK Qwe cvIqv hvq? K wmwU ̄‹ ̈vb L G·-†i M BwmwR N GbwRIMÖvdx Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN 10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN 19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN "-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- DËigvjv 1 L 2 K 3 K 4 N 5 M 6 K 7 N 8 M 9 K 10 M 11 N 12 M 13 L 14 L 15 N 16 L 17 L 18 N 19 K 20 M 21 N 22 L 23 N 24 M 25 K
m„Rbkxj c`v_©weÁvb : beg-`kg †kÖwY 29 29 ivRkvnx †evW© 2017 welq ˆKvW : 1 3 6 mgq : 25 wgwbU c`v_©weÁvb eûwbe©vPwb Afxÿv c~Y©gvb : 25 [we. `a. : mieivnK...Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi μwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/ m‡e©vrK...ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|] 1. `uv‡Zi wPwKrmvq e ̈en„Z `c©‡Y wKiƒc cÖwZwe¤^ MwVZ nq? K ev ̄Íe I weewa©Z L Aev ̄Íe I weewa©Z M ev ̄Íe I Lwe©Z N Aev ̄Íe I Lwe©Z 2. wb‡Pi †KvbwU eY© ms‡e`bkxj? K †iwUbv L Pÿz‡jÝ M iW N †Kvb 3. †iKwUdvqvi Kx KvR K‡i? K ZworcÖevn‡K e„w× K‡i L †fv‡ë‡Ri weea©b NUvq M ZworcÖev‡ni n«vme„w× NUvq N ZworcÖevn‡K GKgyLx K‡i n wb‡Pi DÏxcKwU co Ges 4 I 5bs cÖkœ ̧‡jvi DËi `vI : A cvÎ B e ̄‘ AvqZb 10-4 m 3 fi 100 g 50 cm †K‡ivwmb r = 800 kg m-3 4. A cv‡Îi Zj‡`‡k KZ c ̈vm‡Kj Pvc Abyf‚Z n‡e? K 3.92 ́ 106 L 3.92 ́ 104 M 3.92 ́ 103 N 3.92 ́ 10-4 5. B e ̄‘wU‡K A cv‡Îi Zi‡j ivL‡j wK NU‡e? K m¤ú~Y© wbgw3⁄4Z n‡e L AvswkK wbgw3⁄4Z n‡e M †f‡m _vK‡e N m¤ú~Y© wbgw3⁄4Z Ae ̄’vq fvm‡e 6. evqycv¤ú †K Avwe®‹vi K‡ib? K †ivgvi L fb ̧‡qwiK M nvB‡Mb N ievU© ûK 7. mvB‡K‡ji PvKvi MwZ †Kvb ai‡bi Nl©Y? K w ̄’wZ Nl©Y L wcQjv‡bv Nl©Y M AveZ© Nl©Y N cÖevnx Nl©Y 8. ̄ú P ›`‡bi w`K R P¢ R¢ Q X Q¢ wb‡Pi †KvbwU Zi1⁄2‰`N© ̈ wb‡`©k Ki‡Q? K PR L PQ M P¢Q¢ N PP¢ 9. †Rbv‡iU‡i †h KuvPv †jvnvi cv‡Zi Dci GKwU Zv‡ii AvqZvKvi KzÐjx _v‡K Zv‡K Kx e‡j? K w ̄øc wis L Av‡g©Pvi M mwjb‡qW N Kgy ̈‡UUi 10. GKwU Mvwoi †eM 20 m s-1 †_‡K mylgfv‡e n«vm †c‡q 4 sec ci 4 m s-1 nq| MvwowUi Z¡iY KZ m s-2 ? K 16 L 4 M - 4 N - 16 11. †Kvb m¤úK©wU mwVK? K a = 2b = g L 2a = b = g M 2a = 3b = g N 6a = 3b = 2g 12. wb‡Pi †KvbwU † ̄‹jvi ivwk? K ej L Z¡iY M †eM N KvR 13. B1⁄4‡RU wcÖ›Uv‡ii Kvwji ÿz`a KYv ̧‡jv- i. abvZ¥Kfv‡e AvwnZ nq ii. abvZ¥K cv‡Z AvK...ó nq iii. `yBwU cv‡Zi ga ̈ ̄’j w`‡q P‡j wb‡Pi †KvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii n wb‡Pi eZ©bxwU jÿ Ki Ges 14 I 15bs cÖ‡kœi DËi `vI : 6V R1 = 1W R2 = 3W R3 = 5W 14. Zwor cÖev‡ni gvb KZ A? K 0.67 L 3.9 M 9.2 N 57.5 15. DÏxc‡Ki †ivamg~n Øviv wb‡Pi †Kvb m3⁄4vq eZ©bx‡Z me©wb¤œ ZworcÖevn n‡e? (+ A_© †kÖwY mwbœ‡ek Ges || A_© mgvšÍivj mwbœ‡ek) K R1 + (R2 || R3) L R2 + (R1 || Rw3) M R3 + (R1 || R2) N R1 || R2 || R3 16. Rjxqev‡®úi Av‡cwÿK Zvc KZ J kg-1 K -1 ? K 400 L 2000 M 2100 N 4200 17. 10 †dg‡UvwgUvi = KZ wgUvi? K 10-12 L 10-13 M 10-14 N 10-15 18. p-UvBc Aa©cwievnx‡Z wmwjK‡bi mv‡_ †KvbwU †hvM Kiv nq? K †evib L dmdivm M A ̈vw›Ugwb N Av‡m©wbK 19. RoZv- i. GKwU cÖvK...wZK NUbv ii. cwieZ©‡bi Rb ̈ e‡ji cÖ‡qvRb iii. IRb Øviv cwigvc Kiv hvq wb‡Pi †KvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 20. ÿgZvi gvÎv †KvbwU? K ML2T 2 L MLT-1 M ML2T -2 N ML2T -3 21. Avav‡bi gvb wKfv‡e wbY©q Kiv hvq? K ej‡K Zwor ZxeaZv Øviv fvM K‡i L Zwor ZxeaZv‡K ej Øviv fvM K‡i M ej‡K Zwor ZxeaZv Øviv ̧Y K‡i N Zwor ZxeaZv‡K e‡ji eM©g~j Øviv ̧Y K‡i 22. P C M M¢ F 10 cm `c©YwUi eμZvi e ̈vmva© KZ? K 20 m L 10 m M 20 cm N 10 cm 23. †Kvb h‡š¿i gva ̈‡g cÖvß cÖwZwe¤^‡K cvDiæwUi GK GKwU dvwji m‡1⁄2 Zzjbv Kiv hvq? K wmwU ̄‹ ̈vb L Gg Avi AvB M BwmwR N G·-†i 24. 60 kg f‡ii GKRb †`Šowe` 12.5 sec-G 100 m `~iZ¡ AwZμg Ki‡j Zvi MwZkw3 KZ Ryj n‡e? K 240 L 480 M 1920 N 3840 25. mwjb‡q‡Wi †PŠ¤K^ ‡ÿ‡Îi mejZv wbfi© K‡i- i. Zwor ceÖ v‡ni Dci ii. mwjb‡q‡Wi cvKmsL ̈vi Dci iii. Zwor cÖev‡ni w`‡Ki Dci wb‡Pi †KvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN 10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN 19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN "-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- DËigvjv 1 L 2 N 3 N 4 M 5 K 6 L 7 M 8 N 9 L 10 M 11 N 12 N 13 L 14 M 15 M 16 L 17 L 18 K 19 L 20 N 21 K 22 M 23 L 24 M 25 K
30 30 h‡kvi †evW© 2017 welq ˆKvW : 1 3 6 mgq-25 wgwbU c`v_©weÁvb eûwbe©vPwb Afxÿv c~Y©gvb-25 [we. `a. : mieivnK...Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi μwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/ m‡e©vrK...ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|] 1. `xcb ZxeaZvi gvÎv †KvbwU? K I L J M H N N 2. wb‡Pi †Kvb ̧‡jv †f±i ivwk? K KvR, miY L kw3, ÿgZv M mgq, †eM N ej, Zwor cÖvej ̈ 3. 2 m e ̈vmv‡a©i e„‡Ëi AvqZb KZ m 3 ? K 8 3 p L 6p M 8p N 32 3 p n wb‡Pi DÏxcKwU c‡o 4 I 5bs cÖ‡kœi DËi `vI : 5 kg f‡ii GKwU e›`yK †_‡K 500 m s-1 †e‡M 20 g f‡ii GKwU ̧wj 0.1 s a‡i †Quvov n‡jv| 4. e›`y‡Ki cðvr †eM KZ (m s-1 )? K - 0.5 L - 2 M 0.5 N 2 5. D3 NUbvq- i. ̧wji e‡ji NvZ 10 Ns ii. e›`y‡Ki Avw` fi‡eM = ̧wji †kl fi‡eM iii. ̧wji Dci e›`y‡Ki wμqvej 100 N wb‡Pi †KvbwU mwVK? K ii L iii M i I ii N i I iii 6. c`v‡_©i ZvcgvwÎK ag© e ̈envi Kiv nq- i. ˆe`y ̈wZK eZ©bxi Zv‡i ii. ev‡j¦i wdjv‡g‡›U iii. A ̈vj‡Kvnj _v‡g©vwgUv‡i wb‡Pi †KvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 7. A AvwnZ e ̄‘‡Z f‚- ms‡hvM w`‡j P we›`y‡Z Zwor cÖve‡j ̈i gvb KZ? A P 8C 10 N K 0 NC-1 L 0.8 NC-1 M 1.25 NC-1 N 80 NC-1 8. KwVb †_‡K Zi‡j iƒcvšÍ‡ii mgq †h mKj c`v‡_©i AvqZb n«vm cvq Zv‡`i Mjbv1⁄4 KLb K‡g hvq? K ej evov‡j L ÿgZv Kgv‡j M kw3 Kgv‡j N Pvc evov‡j 9. ev ̄Íe abvZ¥K cÖ_v Abymv‡i mKj `~iZ¡ †j‡Ýi †Kvb RvqMv †_‡K cwigvc Kiv nq? K †dvKvm we›`y L Av‡jvK †K›`a M eμZj N eμZvi †K›`a n wb‡Pi DÏxcK n‡Z 10 I 11bs cÖ‡kœi DËi `vI : q3 30° 30° A R P Q 80° q2 q1 10. wP‡Î A †Kv‡Yi gvb KZ? K 30° L 60° M 90° N 120° 11. D3 †cwi‡ ̄‹v‡c `k©K KLb we¤^wU †`L‡Z cv‡e bv? K q1 = 40° n‡j L q2 = 40° n‡j M q3 = 30° n‡j N PQ = PR n‡j 12. eY© ms‡e`bkxj †KvbwU? K AvBwim L Kwb©qv M †Kvb †Kvl N wcDwcj 13. A B I R1 = 5W R2 = 5W R3 = 5W VA - VB = 5 V Dc‡ii eZ©bx‡Z- i. I Gi gvb 5A ii. eZ©bxi ÿgZv 15 W iii. Zzj ̈‡iva 5 3 W wb‡Pi †KvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 14. Zwor Av‡ek cÖwμqvq †Kv‡bv cwievnx‡Z †h Avav‡bi mÂvi nq Zv‡K Kx e‡j? K Av‡ekx Avavb L Avweó Avavb M Zwor Av‡ek N gy3 Avavb 15. cvK ̄’jx cixÿvi Rb ̈ wb‡Pi †KvbwU e ̈en„Z nq? K wmwU ̄‹ ̈vb L B.wm.wR M G‡ÛvmKwc N Gg.Avi.AvB 16. †Kv‡bv GKw`‡bi ZvcgvÎv 25 °C †_‡K 30 °C n‡jv| dv‡ibnvBU † ̄‹‡j ZvcgvÎv e„w× KZ n‡e? K 5 °F L 9 °F M 32 °F N 41 °F 17. Aby‰`N© ̈ Zi1⁄2 K¤ú‡bi w`‡Ki mv‡_ Kxfv‡e AMÖmi nq? K j¤^fv‡e L mgvšÍivjfv‡e M AvovAvwofv‡e N Zi1⁄2 kxl© m„wó K‡i 18. GKwU k‡ãi ch©vqKvj 5.8 ́ 10-4 s Ges k‡ãi †eM 320 m s-1 n‡j Zi1⁄2‰`N© ̈ KZ? K 0.19 m L 1.86 m M 18.56 m N 55.17 m 19. cwievnx Zv‡ii †iva wbf©i K‡i †KvbwUi Dci? K wefe L ZworcÖevn M Zwor cÖvej ̈ N cÖ ̄’‡”Q‡`i †ÿÎdj 20. mgvb AvqZ‡bi †Kvb e ̄‘i RoZv †ewk? K Zvgv L iƒcv M cvi` N †jvnv n wb‡Pi DÏxcKwU c‡o 21 I 22bs cÖ‡kœi DËi `vI : GKRb KvVwgw ̄¿ nvZzwo w`‡q Kv‡Vi g‡a ̈ †c‡iK cÖ‡ek Kiv‡”Q| 21. KvVwgw ̄¿ hLb nvZzwo Dc‡i Zzj‡Q ZLb kw3i iƒcvšÍi †Kgb? K Zvckw3 ® wefe kw3 L ivmvqwbK kw3 ® wefe kw3 M hvwš¿K kw3 ® wefe kw3 N wefe kw3 ® hvwš¿K kw3 22. nvZzwo hLb Dci †_‡K wb‡Pi w`‡K MwZkxj n‡q †c‡i‡Ki Dci c‡o ZLb kw3i iƒcvšÍi- K wefe kw3 ® MwZkw3 ® kã kw3 L ivmvqwbK kw3 ® kã kw3 ® MwZkw3 M hvwš¿K kw3 ® MwZkw3 ® kã kw3 N wefe kw3 ® kã kw3 ® Zvckw3 23. AeZj `c©‡Y jÿ ̈e ̄‘ cÖavb †dvKvm I †giæi g‡a ̈ _vK‡j cÖwZwe¤^ †Kv_vq MwVZ n‡e? K `c©‡Yi mvg‡b L `c©‡Yi wcQ‡b M cÖavb †dvKv‡m N †giæ‡Z 24. wb‡Pi †Kvb mgxKiYwU mwVK? K G = gM R 2 L 2s = ut + vt M h = u 2 - v 2 2t N s = v + u 2t 25. P UvBc Aa©-cwievnx ˆZwi‡Z †fRvj wnmv‡e KZ †hvRx †gŠj e ̈en„Z n‡e? K 3 L 4 M 5 N 7 Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN 10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN 19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN "-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- DËigvjv 1 L 2 N 3 N 4 N 5 N 6 N 7 K 8 N 9 L 10 N 11 K 12 M 13 M 14 L 15 M 16 L 17 L 18 K 19 N 20 M 21 L 22 N 23 L 24 L 25 K
m„Rbkxj c`v_©weÁvb : beg-`kg †kÖwY 31 31 Kzwgjøv †evW© 2017 welq ˆKvW : 1 3 6 mgq : 25 wgwbU c`v_©weÁvb eûwbe©vPwb Afxÿv c~Y©gvb : 25 [we. `a. : mieivnK...Z eûwbe©vPwb Afxÿvi DËic‡Î cÖ‡kœi μwgK b¤^‡ii wecix‡Z cÖ`Ë eY©msewjZ e„Ëmg~n n‡Z mwVK/ m‡e©vrK...ó Dˇii e„ËwU ej c‡q›U Kjg Øviv m¤ú~Y© fivU Ki|] 1. BD‡iwbqv‡gi †ZRw ̄ŒqZv Avwe®‹vi K‡ib †Kvb weÁvbx? K g ̈v· cø ̈v1⁄4 L †e‡K‡ij M AvjevU© AvBb÷vBb N bxjm †evi 2. †Kvb Aÿvs‡k mgy`a mgZ‡j g-Gi gvb‡K Av`k© gvb aiv nq? K 30° L 45° M 60° N 90° 3. evqygЇji Pvc- i. f‚ c„ô †_‡K Dc‡ii D”PZvq Kg _v‡K ii. evqyi NbZ¡ e„w×i mv‡_ n«vm cvq iii. evqy ͇̄ii IR‡bi e„w×i mv‡_ mv‡_ e„w× cvq wb‡Pi †KvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 4. GKwU ev‡j¦ 60 W - 220 V †jLv Av‡Q| evj¦wUi †iva KZ IÕg? K 16.36 L 160 M 280 N 806.67 5. wbivc` åg‡Yi †ÿ‡Î wb‡Pi †KvbwU gyL ̈ f‚wgKv cvjb K‡i? K fi L IRb M MwZ N Nl©Y 6. wb‡Pi †KvbwU mdUIq ̈vi? K cÖ‡mmi L gwbUi M wcÖ›Uvi N DB‡ÛvR 98 7. a gva ̈g hw` b gva ̈‡gi mv‡c‡ÿ Nb nq, Zvn‡j- i. ahb < 1 ii. ahb > 1 iii. bha > 1 wb‡Pi †KvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 8. ̄^vfvweK Pv‡c ﮋ evqy‡Z 10 °C ZvcgvÎvq k‡ãi `aæwZ KZ? K 332 m s-1 L 332.6 m s-1 M 338 m s-1 N 338.6 m s-1 9. eZ©bxi mgev‡q- i. †kÖwY ms‡hv‡M eZ©bxi mKj we›`y‡Z Zwor cÖev‡ni gvb mgvb ii. †kÖwY ms‡hv‡M eZ©bxi wewfbœ we›`y‡Z Zwor cÖev‡ni gvb wewfbœ iii. mgvšÍivj ms‡hv‡M kvLv cÖev‡ni mgwó eZ©bxi g~j cÖev‡ni mgvb wb‡Pi †KvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 10. cvwbi ˆÎawe›`yi ZvcgvÎv KZ †Kjwfb? K k~b ̈ L 1 273 M 273 N 373 11. K¤úv1⁄4 I ch©vqKv‡ji m¤úK© Kxiƒc? K mgvbycvwZK L e ̈ ̄ÍvbycvwZK M e‡M©i mgvbycvwZK N e‡M©i e ̈ ̄ÍvbycvwZK 12. wegv‡bi we‡ùviY †VKv‡Z- i. wegv‡bi PvKv cwievnx ivevi Øviv ˆZwi _v‡K ii. wegvb AeZi‡Yi mv‡_ mv‡_ R¡vjvwb fi‡Z n‡e iii. wegv‡b R¡vjvwb fiv ïiæi Av‡MB GKwU cwievnK Øviv f‚-mshy3 Ki‡Z n‡e wb‡Pi †KvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 13. †Kv‡bv Zwor †ÿ‡Î 40 C Avavb ̄’vcb Ki‡j GwU 160 N ej jvf K‡i| H we›`y‡Z 50 °C Avavb ̄’vcb Ki‡j ej KZ wbDUb n‡e? K 12.5 L 128 M 150 N 200 14. wb‡Pi †KvbwU‡Z DËj `c©Y e ̈en„Z nq? K Mvwo‡Z L ivWv‡i M UP© jvB‡U N †mŠi Pzwjø‡Z 15. wb‡Pi †KvbwU‡Z Av‡jv co‡j gw ͇̄®‹ `k©‡bi Abyf‚wZ Rv‡M? K iW L †Kvb M Pÿz‡jÝ N †iwUbv 16. ej I †e‡Mi ̧Ydj wb‡Pi †KvbwU‡K mg_©b K‡i? K NvZ L ÿgZv M Pvc N kw3 17. wb‡Pi †KvbwU gy3fv‡e cošÍ e ̄‘i †jLwPÎ wb‡`©k K‡i? K mgq †eM L mgq †eM M mgq †eM N mgq †eM 18. c„w_exi wefe KZ †fvë? K k~b ̈ L 440 M 33000 N Amxg 19. †Kvb cixÿvwUi gva ̈‡g n„rwc‡Ði K‡ivbvix agbx‡Z m„ó AvswkK Aeiæ× Ae ̄’v mbv3 Kiv n‡q _v‡K? K GbwRIMÖvwd L BwUwU M BwmwR N wmwU ̄‹ ̈vb 20. †ejbvKvi Zvi KzÐjxi ej‡iLv wK‡mi ej‡iLvi m`„k? K U AvK...wZi Pz¤^K L wmivwgK Pz¤^K M `Ð Pz¤^K N Ak¦ÿzivK...wZ Pz¤^K 21. Zwor kw3 e ̈‡qi wnmv‡e †Kvb m¤úK©wU mwVK? K W = I2Rt L W = IRt M W = Vt R N W = Vt R 2 22. evqyi mv‡c‡ÿ Kv‡Pi msKU †KvY 45° n‡j, Kv‡Pi cÖwZmiYv1⁄4 KZ? K 2 L 1 2 M 1 N 1 2 n wb‡Pi wPÎwUi Av‡jv‡K 23 I 24bs cÖ‡kœi DËi `vI : A B C D 30 m 10 m m = 10 kg 23. e ̄‘wUi fi 10 kg n‡j A we›`y‡Z wefe kw3 KZ Ryj n‡e? K 2940 L 2900 M 2840 N 2800 24. Dc‡ii wP‡Îi Av‡jv‡K wb‡Pi †KvbwU mwVK? K B we›`y‡Z wefe kw3 A‡cÿv C we›`y‡Z wefe kw3 †ewk L B we›`y‡Z MwZkw3 A‡cÿv C we›`y‡Z MwZkw3 †ewk M B we›`y‡Z wefe kw3 A‡cÿv C we›`y‡Z MwZkw3 †ewk N B we›`y‡Z MwZkw3 A‡cÿv C we›`y‡Z wefe kw3 Kg 25. UavÝdgigv‡ii †ÿ‡Î wb‡Pi †Kvb m¤úK©wU mwVK? K Epnp = Esns L EsIp = EpIs M Ipns = Isnp N Epns = Esnp Self test 1 KLMN 2 KLMN 3 KLMN 4 KLMN 5 KLMN 6 KLMN 7 KLMN 8 KLMN 9 KLMN 10 KLMN 11 KLMN 12 KLMN 13 KLMN 14 KLMN 15 KLMN 16 KLMN 17 KLMN 18 KLMN 19 KLMN 20 KLMN 21 KLMN 22 KLMN 23 KLMN 24 KLMN 25 KLMN "-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- DËigvjv 1 L 2 L 3 L 4 N 5 M 6 N 7 M 8 M 9 L 10 M 11 L 12 M 13 N 14 K 15 N 16 L 17 N 18 K 19 L 20 M 21 K 22 K 23 K 24 L 25 N