ray optics & optical instruments, Cheat Sheet of Physics

**Description:** Handwritten notes of Ray Optics and Optical Instruments for Class 12 CBSE Physics, prepared in a neat, simple, and exam-oriented format. These notes cover all important topics including reflection and refraction of light, mirrors, lenses, total internal reflection, prisms, optical instruments, microscope, telescope, and the human eye with clear explanations, ray diagrams, derivations, and numericals. Includes important formulas, NCERT-based concepts, and board-important questions for quick revision and strong conceptual understanding. Perfect for CBSE board exam preparation and scoring full marks.

Typology: Cheat Sheet

2022/2023

Available from 05/10/2026

anonymous312
anonymous312 🇮🇳

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Kay
Gpttes
k
ogticak
Sntumonts
gkt
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Katougatat
path
Ahud
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3x
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taigast pato d
it
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af
te
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Retio
Jayai
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yàysu
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pf3
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KayGpttes^

k ogticak Sntumonts

gkt auu^ Katougatat^ path^ Ahud^ o^ iqlt^

isMtaluAaula

C 3x 165 myS taigast pato^ d^ it^

= Ray o at^ bunek^ o^ says^

uam (^) af te

ouneig aak.^ olf^ a.^ uy^ el^ lgut^

uwn ut JttukAa kamday hutioeu

Aiyvelt mdid^ thaugh^ u^ it^

sanuot (^) as 8 Aallus^ Ketion Lau uatiu t

ceig (^) Retio

Jayai ayleunoing^ undisulas

dglu wncidneE^ uglh^ o^ uluetton

AhLAal uug

1 Concam^ Alumd^ on^ tu^ mid^ splue

tonmc: aluud n thu ulsidu e aphue lulging uttionuds(

luulang Jmuwanss Jmuuti

olP)-Lntu o t ulletig unla Centu Csmanu (C) - "nta splliu el which thu miuuor iaa faut

Raduus of CswaulR)- Radius osphm e uhfeh miunn afpaut.

Pmobd dou Line jsuimg

Pumeal

midt m t muouAaall ti tu þunaiaal sos oukuxe

oouA-unt on ulnaipal ais d u ui Jays ght

foral Lngth - Listaes. useilal peus n pol ti mus

Kays 0uiqimatiis n a sat Malialy muct.at anettw put

Real:_ayA 0ctTally mest,Viual:^ yàysu aftielty apfoeun (^) to meil.

Jmag fonmatiom duy tonerb miuoA, Ruls

Rul (^) :shemenu (^) a ay o Jiaht ia umeidut (^) u tha misuou Aaxala tu pamibal ania asala tuaugh tu kuinesal yous Rulu as04 git wluioh basus uuoush tu pumipal pon touswnds (^) shoviteal muiu4 at (^) Aellsiou s (^) uloeteA (^) arallul 0 RulL3: sd uay e Lgat uuhiols vpasn uaugu tu u e umalu ie (^) dnsk (^) alomgu tu am (^) sath. Ruluh d. uay Ught wueh s nmidut ousudsu selu

A LLal wwdaptoaoliqwly i thu kumeisal pocis i ltetl

ma gooumaio0 y ComeamL iuu bict at Julindt

Smage at(P)I

2 et Juan cutu Cualiu 9maq twen fU %C wwtd, Ra Siat at unbu Culaliu Sndetid (^) SubAN= Savne a Jpnd , Rral ImutaAlagdimag

  1. 0ict at oeu Smag at tu

M Aouutiou^ ptu^ Ration^ dy^ &phieal^ Hius du diutamew auu muaswus m Pole. oljet did alw plaoud. d h lltsmusot

0taneL Touaids lt Pol auu akui -e obj. distanoris ali

icdmu Jowauds_Hioht d Pol A akm tu. Cistama upmdiuufau^ luon^ buinnika.^ uois osu^ takun te. istame snpndicula lulour huumeubal a00is asu Tokuu -..

MuuuDy aualiou- Rlatrs imaq dualame with olyiot dit Vlaal n

wk u= o dustaneV=imagd dist=ldal u

Hagnilination et a ablunl miu MLaL hsur loge

how all am D wi wbit to tu cRat Maguuieatin mane uiglt

dn oljiet engith 25om is plaaed ata distanen o 55

h=5ch u=L5, 4 Etnatusa (^) 25em

=L 5

V- +V (^) r

  • (^) Ra amA. Imuctod

-2= h'9:

i 5 cm (^) As mlasu8 imag

Keactio oLigt Kemding lilt^ uskun^ it^ paaAs^ uom^ m^ mdiim^ i^ aotton.. kau o upuactiou-) natdunt suay, ueuasid uay and tu lozne umtoter at thu point o inoidimelal liiin tu Bamu plam.. Ratio of Aine. of angh ridenoe i une el asmg uaion is du Cendaul 4ou a. pediLa AIht Akroilie coloun k Vu d AiitE faiu o mudia T elld sulWkdo.

LRasti odue(m) 11

Katis o ahled. Jight a giuem uwalugtu im aii h it

sped m'a mediun

Spud e Joht iM thi madiim MReastiu indaoe dusimds ou natt e muoum 9ndupundlw nglu noiolmce. 0stico densdy ability oamy muduum eMast lght

ptiulk dtmditze dusLM mdiunrn=Hijkun Hulumtiit dot

tioal Aa mudium = touua uasttiuu induoa. Apaud o kijlut in say mulin > 8hud light in dunavmdiud MaiLmal._ hgut moumg u. Mdma mdu to kauwu DMI Lnds asayme, Ju uluasid xay dhat wuAgL uom a mudium ap uluachon us Am (^) sugudt (^) ihy. Wm (^) a (^) ullhstil uay (^) paALs wwt a ylaw ala, ts elsctid Ha 0oVnLA Om skhnuudnt way Amd if Mema aunly eam meumal and poual u ineidut kay lht is udnt 'liguly o a hauall aidd glo shle tu (^) muup (^) Hay_ (^) dkils aloally. Ju (^) hunpudisuhn (^) dut neu liuwn (^) tu diudion ethl diu sa d mueie pa4 alld "latial ait#

Hau Chtiel fbuu Wouk? Co (^) High (^) saluaotiut dnduoe, (^) daddig (^) (touutg): Lu (^) upatnt (^) ndioe Aima digtt uldesuge Total nliumad sellustion at aoh atagu,tusa s me (^) aphiuual loss im (^) tu intinsity (^) oftu. Liglt Aignal. Plastie eftioat Aibua Chab ase ptiaal Libuu

MoL hont n JuaMMmuitiou

kuss Joda mmolud

witthstmd mouAusA usa uunt amAnution. DD Ndt^ Pluooill

High kiA Jnulumd

ptial oLnuml (^) ougaM k (^) Alealjiutiutnu (^) ttL (^) AiALA a (^) madinud lus (^) Amd Hlu (^) optia (^) Andssnohy uuauul (^) sauiMaio

2fuim mut u olyut uithout alinung dz Ap ly uuding iglt by 90°,

o (^) mak (^) uu e telal (^) inlotnal (^) luwtiom. (^) Am (^) usd (^) kudeulan, =Anie=H&: M2 +Mg R TomA= (^) uanapauumt (^) ohinal (^) nuoium (^) Juoundd (^) y tiso (^) sulasesTlhast

Juimaauunod.

Aml LaLa^ =_AUMgl (^) ieL (^) iMabaut madrurt (^) mauuual Compommd (^) unsu0ntlumatioM (^) mamMy 0mpl wnaA= (^) DSLR. OnL Hutuuu ss dadus unaliethun lma

ALallud tum InaLA d lunar has Juss punesal lol, Ek

couing JuMA

oww.Au uinA

duuuugmg lms tonnaJ Jue-V-w, ,K,z-,R +e

Rr Mq+M - V (^) R +2=-M1 (^) +M +mg+ngtn. R

V V

=-Mi + Mg- V

V

on mak^ loumula 9|-(m2- M

Thi uns^ pbuoeination (^) BD=O (

Riluastio Juy AumA Rulid

Auay ol Jgt ineidnt on thu Sons pauallel. to ta puinsioal aoois astu

Allotom pakaus tuough aued uindbal fooua LhL).

2 0 l Sight saadimg thuoug Jiust uinoibal pou a Auluastion shuld ous Ahuall to thu bluoikal aoolv

ati uiluaètion.

Puiam Ruom is o tianabalunt optinal wlomunt usêth plat, slekikud sh

Anlacs dtsignud^ uuast^ light^ piamana duiatiin

duiation (5) An ingidhsesL dnglemgeieule); anglu puiom(A 9ustun S =i+e -A

Smia = 2-A i= km+A

ma ainlA + Sm/2) ; 4o Jhin Puusm bm A (M21).

Sm A

Qispuion Jy huism = Ahitn duglt is Aomponrd o{ di colouss mudium to oth tuab ud auiis omd. hemce each dolouw dluuintio uom d t ovmglis hu patiwn o sokouus oltaimed s twmad ous uoiwm idttumgLiglt inta it Amstituunt nelouss is umed wwn tso buimmb uut'plana thi Lolouus diapauad uom Ipuism gub auactrd agam omd hmes pasaus Lsliti Lgtt 'at tu end. o aiRUTion

Raumluouo-shn aumligt dalls on ai deto LOatduoblits it Meluacta,

lacta a distpuALA ohd Kmes o. aimbaw ia ouud oppoitientus"to tuaiudupsun Paimauy (Rainlsow Aowmotion 5)Kiuadtiou wullat as itstbaivdv 2 mtiumod^ sulluctiom^ f^ du^ loit^ inbde^ thu^ diep. Juine ufuelion 0ours'only ode u calud fpuinau dsktuaiou aumdutp

AuDnda Mainbow unation =)uuagtiou efamligt as t antnus Hu saind

Sutvnal uukitiow' t bgt "maid tie duep. Sdutiou Repetrou o ulattd git aa'it cohasout tu duap OptoalOstal^ Snstuuts^ Snstuumunts^ diaiand uaing^ uluting^ & uluasting ucksit e msa, umus prisn.a-isuoask, lskoke,Eiwoeukan,upsl

Cobonts of yu lovnma = Puom. tiamabavunt þaut ta elra Jght ats^ ta u iusugh te^ coumsa dqueuA. kumdu. [ut undsga ualuaitim T is = dask maseulaH o amd a umg lik

ADuetiu Jehind u souna da RmOum as uA

Thu olaun o thu iu actnally dndiiati t wolo tu eye Pusil= mal shenimg in tt cs upil

Aing s contaelhd sia. Aotuda tu amuut it at

ntius ens Juhind"fußil , tuu Aatampaut atusin Callud Jms. maa alusas umud m Juf+na indubmdnt heu fax u slou. tu ah is

o ountu imagi at the iood tu toenl. Jngtl is ti'b ehangulaoroi

La buoms thidn otoeu astant eliota ama Jueomus tuakuo tseus auy abjict md his ib olone uith u trlp illiay musea Cianmuseluzahamgua tu m Alsaks to looua Lgtt tu kutina Ailluasd uselas Aoukndt=uMa luoms thik-ud uia wAA ww.cu ui vtue wAuitid (^) inaq ia (^) toumad. in (^) uutina (^) Jut t ta (^) luain (^) manupitais and maka eue tast (^) olitante o distant^ uiaion 7 lnst (^) dismce (^) ts uhish, u (^) knn om (^) oeu aht o (^) fhe utinaumd as (^) Neas (^) pot Stamdaud, ualus s 25m oa moumal uaionhousenu ineuaaA Lw age. Myoia (^) Neausightidnesslnalt to au disat (^) ojd (^) elhanly nngs md. ulpu tima. Louuuctid using doncaM "Jmn

age Js Omd. uyend Htina lonueltd JMg Count ud

stiymatom= (^) loumaa (^) mat (^) aphoieal iu (^) habs (^) uuá (^) ussion Josuatid (^) usimg (^) ylinduical (^) ond (^) diswul (^) uadins (^) eumaduse u abhupciatay