Name: Khwopa College of Engineering Engineering Physics Practical Experiment Performed Record Progra CRN: Sub-Group: Sea] S. Date Initial ‘Name of Experiment Final Remarks ‘To determine the modulus of elasticity of the given material and moment of inertia of the disc about the wire as ‘an axis passing through its center and perpendicular to its plane by using Torsional Pendulum, To determine the wavelength of sodium light by Newton's rings. To determine the capacitance of the given capacitor by the method of charging and discharging through resistor To determine the acceleration due to gravity and radius of gyration of the given metal bar using bar pendulum. To determine the wavelength of LASER light using diffraction grating and hence determine the particle size of Lycopodium powder, To determine the coefficient of thermal conductivity of a bad conductor by Lee's method. To determine the focal length of two lenses when they are separated by a finite distance,CAL SHEETS CAMP Experiment Ne [APPARATUS REQUIRED | i? Torsion pendulum with o cineulor ring v)Clamas ii) Thin tire vilMeter scale |_1i> Stop wate! vi) Spirit level 2 So ix) B {THEORY hal anes ia. de ; ; ‘Taian...’ att I. i Torsion... Pendulum...3 Tie Om [Tel ii) me Sntl sees iv) (ret) rt fed : 7 fo, Tye MR*+ HRY 2 oo where, Ry = internal radii of the ri Ra = external_radii_oF the ring M__= Mass of the ring Aggin fora) and Gil) we get : L = tt Tr’ ee) [ie <1? |re Figure. 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Tage Sz] ner ob [699-1] 60-91 | wh) 961 om naT OF oF cea | HH] ws FEST me FHA) 0g | 08 | tess | teST | GAS oF, 006) OZ | £191 ATT | GIST Te-9h |9¥es| 89%] Ob | S91) srst feos" | 30 | | | { i | | ee we) oo] or] bS64| 93-81 | H- | 49°et jist Se) oot) OF | set! $561 8561] SS \ {| 1 | l DG), ST EU, SG TRG ale “H| © ¥ t i porad — TOG OIN OF Lf TTT TY ary PP ee"300 dey ber da| “ON obeq ————— 180) xe ruL CALCULATIONS for the plat of T~J, Table : 1-2: measurernent of _g and K from To geoph Stralght SH | te com | Sa conn | Cem | Tab gal 92 2 Cems | beds tim ABCD | AD=46 Joc: js | At: G#tlo2 [625 | 956.87 18-34 00> 46 |e0: 72 | co: 643 941.84 27.96 Fie'c'y’ | Ao' 4a |oe’= 29 I pec': 66 lolz 1-600] 1017-30 Lier OOF 43.6 | Bo'= 2-5] np: 6S 1002- 38, | 30-58 A'e"c'o" A’o!: 35.5 |0'c'= as's| Acts 64 Lotz 1-S3s|__ 1019-54 | anas o'p": 33-5 | G"o! lors -S4 | 8152 Table. 41-3: measurement of g_and ki from t'at* graph: eno op slopes a: Ag Come, Ke SOO tea | A 345 480 0-0F4 $397.23 23-92, 8 33-45 360 0.044 997-23 | 97-63 | Table 4.4- Grror_caleidlabfom fgr-_g (stabishical) Sw | Calculated glentt Mearlg) | DevichtonlSsn 5} Squore St | Sy Comicy_| 4_|ose-e = 35-43 1234.39 | 2 | 54087 ~50-48 2579-45 | 3 | Lott.80 992-45" 95-14 682-10 | 84.43 4 | vo0t-33 932) 94-51 | &__| lors.s4 95-49 669. 86 GC | fots-s4 95-89 669.86 i Sessri5! St. 5930.17| Mean value of ys {2 A 5999-65 fmf IL |_ Mean equa: ce_desfaon of sonpla y+ Tq O86. = Tale 1S: Gror calualalon for k. Calculate Ki cen 28.97 Deviebion (4; 51 +144 Squaye, of devrabion: ( S972) |. Standaud 27-96 -2as Bh | ge 21 Oko 11-486 80-88 0:36 [ 31.33 112 | Bis2 1.30 | [kis (81.27 L. Mean volue of k= k= 2ki = 30-2 n me Mean S devialion of S RE) = SSki = 184 lean Square deviation sample, (3 Shy |__ The E best estimate of slondarl error (ok= | 58k" = 1-486 nn- 2. The bob value of k= k to = (30-21 + 1-486) cmL i) Throselical calalation oF 9 in Kolhmanclu Valley 1 Gg): 98 (4-2h\ . $8 [4 201950 | = 9.49mIs* = 928 Joon: 7 [tance] = 640000 where bf the height of [ofhnondl ab btbnoncls ually bom seo level = [iSdm it) The. het valve of 9 = (999-65 + 34-43 )emh? iid Percentay or : 1397. Lau TIncoreltral yulue of ke for bar fornth chmemion = f° = Ion = 2-06 cn i b : a Na v) The het value of k= (20-99 + |-486) em, vil The pertenlage ens of k= 3.627. 7 foses coal A ; on snis_passing lbrauph. wts Clr con he deterninenl in this uty ao \ Zen bvAPPARATUS REQUIRED = c > pica Bena [numberof equivalent parallel stratgh lines ore ruled. The. ruled tines ore Lopoque to light hile the spare between the Iines is transparent o the Itght land ocks as sit The thickness of opaque and fmnsparent park of the — | galing clement Ss of the der of wavelength of light, The grating used th | tab ore generally replica gratings made from orginal ones. | then a poral bona of ler Light tx tncen normaly on the qoaing tt suffers diffraction Ts raven tea Ikki etre of different (a+b) sin @ = 2A ane om A_= (a+b) sin Om 2... (6-4-0) on Where a ts width of Transpareny ond & ts of opacily, Gn ts the angle _of diffraction of _n!* order. 7 i ; : £ | ginny clement (ath) ts glen by,loser I ie sourced sin On = nA d=nA_anda_... .. (6 sin@, oP Bul the freshnels corrected! formula ts d= 422nA_ 5 422nDA_... ... (6-3) 7 sin, r a Here On can_by © fe. sin Qn = tan %m = 7 D bat++ aaefang. "2120Suede Loree Toes deres tells cease Date:Dotence behween Bright sets 2 Ditance X= % | 0 88» % Separation _behween Sserea ve $4 4. | 0. 0608 35. 0.130 a“ 260 I30 0: 2006 648 mm 356 1s. 0-274 458 299 0- $534 < 568 24 0-4393 692 346 09-5339 [es shaw] Se parchies Bdiaete screen — MT as ah ie Diafnefer of n* ecder ofting (1)| Radius r= Yadea| 42m Or % se ou and date. (0) a| st _92.2¢m ttom oF 0-03) st Bem 1 0-0 688 2 vt 93-Ucm 4-3e 0-65 0-027 a Om Ls. 0-049 s e 28-Fem, [Sere 08 0.017 Pied 96cm 3 0-040-67 0-26.50 03334 7. 0- FO" 0.214 x10 Sern, 3-63 x10 ESULIS Tae smectength of He-Ne laser light = (630 434) r10°%m = 670437 nm. | Stondocd voluc of He-Ne laser = Gipam ——— Wovdength of He -We exer from geoph * 622in pteendage enor =O.Tha Seeof pastitles (6M sit ct 21 >) p10 m = m= Stemi 91.2 + 2-1 wn Teste of _pudile From qmpk= beereelg Sn atari gm. = 9.65a/0" "ms 36-3um» ON b ne n berm tre, Sifpeveiahearee. 0 h pati dab bh welenglh of a J Me - nag the. property Pfroctton of Ith ¢ 4 dj os na Tereatre fi PF ren yrating Wavelenath o be can be dolermined by aoa d fe an be delermined by” meinusing thes mala cf p> Aides of dttealfon nued by bes aciicle, ftom aap itl oth snag © nachromalfs Jtahr canbe measured and abo o cool patlides cuth or lyenpadtu poids . ° PRECAUTION. tpsPHYSICS PRACTICAL SHEETS nO... CAMPUS, Experiment No. To plot A ae eae a_i S| les ¢ | v)_NilVammetey, v vi) Voltmeter xi) Cooneching sien. THEORY | inductane L and cupociune C (Fr ll-t) 5 sorter then the cutronk in the ctruth, % iuen_by Tw Ew fo .. f+ (4 Xo0* z Where, Xi + Wl + Infls induce veoctonce. Kes A = A= cupocitive. reackance WC InfC Zz Impedance of dhe duit ard Fs frequency. of the AC. The impedance of an AC circuit depenth upon Ihe bequerey of the gppliecl emf ond hence the wrrent _clepencls upon fequeny. As the hequenty of the geplied volkage [ pucdealy decreased Inaewed fom vero fo tiny, X trvecses fo ero 4 infil Gnd Xe decreases fom inftatly to O- For_a certain value. of frequency, x = XeR ¢ L aww] t—amm-— 7 | Ye Me Frac LOR seria et For resonance Limay Fr eto Figme 2 A berdalice. go belween une aptitude i aeph opr . with shy (f+f tehl f shen & 4 Feuer. thc fr i _sesonanre frequency o f+ 4 2 Und ane Here eb resondnce frequency (Bly Z=R, the curcent J, hey moxie valua The freqeenty fr gir the mahual frequency of on LC cireath and when The feguenty of Me applied emf (E~) equal the nahural teqaeny of he dradt, resonance ts sald_fo be _faken place ‘The ratte of potential drop across tneuclame or capacitonce to_the poteattal dre acs He retitance at resonance is called qualtly factor or @ value of the tin hich ts clo enpressed_as- Q= inh vss f139- fs f, and fs are the value of frequency above or below the ronence feysenty frrcuhtch the currents fa the ctrudt t Je Ab resonance Q-value tnfecchange. be : sen enoclly equal Q volue fo 12 capacthonce te cwoR> ISBSER VATION | Tneluchonce (1)s 10 out Copacttane CO) = ptf Qutpub voltage of Ihe generator =| | Natural frequen 4 = 5.03 kia w/ ie Vv 2 = too 2 Rg = ISON F (ete) | Teena E(k) | Tlwad F(kile) _| 1 (nf) ‘A 0.60 as 0.60 os 0-60 25 | 2 on 3.0 0:40 30 o FO 3.0 i 3 | 0-80 35 on ss “080 ss 4. 0-99 SS [00 S.0 1-08 as = 2.00 lo -0 Lol lo-0 2-00 oS 6 3-00 16-0 8-00 4s 3.00 3-5 Z| aot 10.0 Got I8.0 4.0 leg g $-03 ots UE $03 lg-0 $-03 los 3 | 6or 20-6. Cw 13-0 6-00 Ibo wo] 70 18-S Hoo los 40 IS. 34s 16,0 8-01 as 3-0f By 3-95 14-0 8-94 8:33 Ino 9.97, 12.0 3:96 9.94 0 ho we re We | blo 10.5 IaJo a 12/0 lose 1240 asof Gowent ob renoance (tr) Catawated (E/R) Curvert at Resonance (ie) fa) \A? | Diterence + Bessnance Fequencs fem The graph Cf) = S-03kH2 1-9/9 = 0-033 os a0 Viigo = 0.035 6-0 16-5 7 Bhso 26-020 35 7 7 ~ / = Table 4S. Calebton 2& Suality facto, ale | aaeaien| 225 | eas {s-64 | ¢nbaadl jaa | fags | 23s | eas 4-26 Sth oa [we | mes Taso [$so [4.51 |a10s/\2- om? | SamBOr0- t terme = 0 7. Diktereme (£fl> 0 kHz. es: Requeng = fet Sf = 5-09 kHa. Ge Gor B= £64 Qu lor r= 9-86 Qs (Fr fs) = 4-51i | the value of Current of resonanra, Tn (for Ri) = 2g wil Tn (for) =19-0 Ty (forbs) = les! | CONCLUSION. 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