Telescope and its Magnification I Chapter - 9 Ray Optics Class 12th Physics I Boards NEET JEE

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[@ishurishu4414]

B)When final image is formed at infinity....A parallel rays from distant object incident on the objective at an angle alpha it forms a virtual image A'B' on the focus of the lens . The distance between two lenses is so adjusted such that A'B' lie on the focus and the final image is formed at infinity....Magnification:It is defined as the ratio of angle subtended on the eye by the image at infinity to the angle subtended on the eye by the the object at least distance when seen without telescope....
m=Beta/alpha as angle are small...Beta=tanBeta..alpha=tanalpha...In Triangle A'O'B'..tanBeta=A'B'/A'O'&in triA'B'Otan alpha=A'B'/A'O...doing cancelation m=A'O/A'O'=fo/fe....(m=fo/fe) am i right or wrong can anyone say it...last problem

[@lakshyavarshney7737]

very nice

[@_DashingAdi_]

Noice

[@debashis169]

Ha ekdum thik👍

[@NitinKumar-ye9lo]

nice

[@at.4726]

A’B’ Image will real
Bye the way thanks for effort🙂

[@studypoint1694]

All clear sir but cossgrain telescope me jo mirror focus se pahle liya hai o convex mirror hoga n to polished surface opposite side hoga n .
Ans of homework ques . m = fo/fe

[@anjulsingh8207]

Crystal clear sir.😌😌😌.... your way of explaining the concepts are amazing & brilliant 👏 ☺☺☺☺❣❣❣❣and get well soon sir😃😃

[@bhumirajput94]

When final image is formed at infinity and _M = fo/fe

[@DivyaPatel-gs7xd]

I was really so confused in optical intrument but now sir its crystal clear❤❤thank.you so much sir ji💫💫

[@shivamthakur6571]

Op bolte sir ji ..
Sirf aapki vajah se maine offline coaching ko chhod trust on you sir love your's efforts . Live pe nii aa paate but ek bhi lecture miss nii hote .. ❤️❤️

[@prachiaggarwal8938]

In h.w
m=fo/fr
m= Magnifying power when final image is formed at infinity

[@nidhiyadav979]

Telescope is one my favourate device aur aaj iske bare me learn kar acha laga and only and only one because of op vishal sir 😊🙃

[@nidhiyadav979]

Too good lecture sir all concept were crystal clear 😊😊 sir take care of your healthhh

[@rpt.wilson4469]

THANK U SIRJIII❤️❤️❤️❤️!!

[@oe_rabbi]

Super duper lecture every concept is clear 👍👍👍 thank you sir

[@sat6545]

Final image is formed at infinity.
(magnifying power is m=Fo/Fe)

[@Anshulife512]

Crystal clear sir ji

[@letscrackit_]

Osm lecture sir......🤟🤟🤗.... thankyou for this lecture sir 😊

[@SHIVANISINGH-jy1tc]

Hi

[@neelamkumari4318]

Thanks a lot sir lecture was so amazing saare concepts clear hogye 😉❤️

[@miniaturevlogs1312]

Dhanyawad sir g 😊❤️

[@armedforcesaspirant]

sir, khi bhi chale jay aap se badiya koi pda hi nhi sakta sir😀 Ossssm lecture sirrr ❣️ everything was clear after many days i take the class sir b/c of backlog .

[@rashmisharma1484]

Thank you sir😊✨

[@amitvashisht7398]

Sir great 👍 👌 sir app datte Achha hai

[@Billionaireattitudedi4ry]

All concepts clear amazing lecture thanks a lot sir

[@shivpratapsinghparmar7004]

Crystal clear ❣️❣️❣️

[@san9312]

Chapter-9: Ray Optics and Optical Instruments
Ray Optics: Refraction of light, total internal reflection and its applications, optical fibers, refraction
at spherical surfaces, lenses, thin lens formula, lensmaker's formula, magnification, power of a lens,
combination of thin lenses in contact, refraction of light through a prism.
Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their
magnifying po
Sir telescope h syllabus me dekho😅

[@rpt.wilson4469]

Mey bhi confused hogaya tha. Scattering of light and dispersion deleted hey sayud but telescope is included

[@RADHIKACLASSES]

Bas phir sacttering krwane ki jarurt toh nahi hai

[@rpt.wilson4469]

@@RADHIKACLASSES Yes sirjiii❤️❤️❤️❤️ deleted hey isliye next class mey numericals kurkey wave optics start kurna thik raheyga sirjiii❤️❤️❤️❤️

[@tirthraj5820]

@@RADHIKACLASSES hai competitive level ke liye.

[@RADHIKACLASSES]

@@tirthraj5820 krwa denge aj tak hua aisa nahi krwaya krwaye ge

[@_tripti.mishra_]

Thankyou sir🙏❤️

[@brajbhan7423]

Sir telescope ke dono case me negative sign hoga kya
Sir confusion hai please reply

[@panavsingh283]

thanks a lot sir

[@annusaini1276]

Such an amazing lecture is this sir as always 👌💯💯

[@Amrita1874]

Tq sirrr

[@bhumirajput94]

Kamal ki class thi aaj ki 🔥🔥sir ji 😊 thank u very much ❤️❤️ for this crystal clear lecture 💯 💯

[@pandeysambhavi6]

Yeah..

[@bhumirajput94]

@@pandeysambhavi6 yes 😊

[@gurujacker2555]

Hi

[@poojabhardwaj6014]

Thank you sir🙏

[@gurmaniksingh3126]

Thank you so much for your support sir😚

[@kavitamaurya9763]

Sir telescope 🔭 crystal 🔮 clear your teaching way amazing 🤩

[@Mehroon442]

Thank you so much sir ❤❤❤❤

[@ayushchaudhary6903]

Sir today I got this channel...❣️That provided the same content which I want....❣️And I am going to subscribe your channel....❣️

[@mrkartikvlog4494]

Sir aap defects in eye samajha dijiye kal ke lecture mein
It's a request 🙏

[@kashishrastogi307]

Op lecture🔥🔥🔥

[@prachitiwari9609]

Superb lecture sir 👍👍

[@saumyakashyap473]

Lecture was truly Amazing sir ...... Soo helpful For us..And everyone Must watch this video.💯❣️❣️💫👍

[@amitthakur7370]

🥰

[@nargisfatma4665]

Cassegrain telescope m convex mirror ki jgh plane mirror nhi rkh skte???tell me reason behind this

[@iamnitya5615]

Awesome lecture sir all clear
Fabulous 😋✨😋✨😋✨😋✨😋✨
Stay blessed

[@Janviratann]

Sirr mein apko sach btau toh😅mujhe physics smjh nahi aati thi par mujhe jab se apka yt channel mila h this is the first reason for my physics to understand and read sirr aap bahut accha pdhate ho sach mein sir mein aapki bahut shukar guzar hu thankk youu so much sirr for reading and understanding so well💗💗

[@Priyamvada_Gupta019]

b) when final image is formed at infinity the magnifying power m=fo/fe

[@pakeezafatima291]

Crystal clear sir jii 😍

[@Sonusingh-qi3mc]

thank you sir

[@kajalyadav521]

Thanks 🙏🙏🙏🙏🙏 sir for your efforts

[@pandeysambhavi6]

1st comment..it was an amazing lecture sir..😇😍💯..Everything is crystal clear! Thank you sir.

[@meenakshi_s685]

Sir telescope topic nda aur jee mei aa rha h kya???

[@manishbhawariya1742]

Thank u so much Guru ji

[@farhaquraishi1532]

Me the legend watching this one day before the board exam😂

[@rajvardhanpal2627]

Kitne aye apke

[@rajvardhanpal2627]

Mujhe to dar lag rha hai

[@ravendrakumar3176]

Sir I'm Not studying in Any Coaching or Any other offline sources because i Can't Understand From Anyone EITHER it is Offline or Online....I can only understand From you sir...
Really Sir ☺️❤️....So thank you so much ........ I Wish.✨ .... You will teach me Neet physics .✨✨❣️

[@sangeetarwt476]

Tq sir for this lecture nd for Ray optics esy concept 💞

[@Vlogs_nature_]

Sir I have 2 Question
Q.1. Kya 🔭 Telescope Microscope🔬 ka opposite hai ?
Q.2. Agar ham log objective piece kae pass sae apni eye rakhae dekhae tau kya pass wala object daur dikhae ga?

[@kidsworld6698]

👍👍👍

[@mehakjosan9025]

Thnku sir

[@oe_rabbi]

Sir apki tabiyaat kharab hai fir bhi aap padha rhe hoo😭😭😭 thank you sir apke efforts dekh ke to oor padne ka maan karta hai😀😀

[@at.4726]

Thankyou sir for this Nice session ☺️🙂🙂 ......
Always thankful to you🙂🤗

[@RekhaTiwari-dy7sp]

Dispersion or scattering syllabus mein nhi h na term 2 ke plz batado..? 🙏

[@kashishrastogi307]

Crystal clear each and every point 🤗🤗 tq sir for your so muchhh efforts for us and take care of your self sir 😊 get well soon✨✨

[@abhay6634]

Loots of love and respect to u from my side to u from my bottom of my heart .....may god bless u take care of your health sir pls ok don't eat outside foods at this time ok I pray to god that u become healthy as far as possible thanks for your all efforts ....be strong be positive ....ok thank u ...!!!🙏😌☺️😊

[@realsoul910]

Sir last me cassegrain telescope me concave mirror ke bad apne convex ki jgh concave mirror hi bna diya 🤔

[@rubeenaartista1371]

Shukriya ❤❤❤❤🤲

[@anurag.singh.97]

Sir ji cassegrain telescope me jo andar bala mirror 🪞 hai bo aapne convex ki jagah pe concave bana diya hai shayad

[@happier___368]

Yessss

[@anurag.singh.97]

@@happier___368 yeah ofcourse

[@fanta5234]

Shi h

[@mayanksarkar7626]

@@fanta5234 nah bhai polish galat side hai

[@priyanshusharma8485]

Happy diwali sir ji lots of love ❤❤❤❤from Rajasthan😇😇😇

[@pkt49t]

Get well soon sir milte hain wave optics mein with full energy

[@RADHIKACLASSES]

Jarur

[@Ak1-x1y]

Osm guru ji 🇮🇳🇮🇳🇮🇳

[@jyotikashyap1888]

Crystal clear sir..!!!!!❤

[@rajmohanpadhan3513]

You Rockstar sir

[@khushbookhushboo1085]

Hello koi btayega ajj maths ki class hai ya nhi please ????

[@ayushmanjaiswal4970]

50th Comment
Dhmakedar lecture 👌
Jai shree ram 🚩

[@tribhuvansinghtribhuvansin5971]

Sir ek baat nahi samajh aa rahi hai ki jab princople axis ke parallel rays hai hi nahi to focus se pass kaise karengi

[@shivendrayadav4278]

Clear crystal sir

[@oops463]

Sir apne cassegrain telescope me dono same mirror banaye hai aur name alag alag q hai??

[@nidhi_1454]

m=-fo/fe astronomical telescope at infinity

[@vikasmaurya1014]

Negative nhi hoga convex lens me f +ve hota h

[@krishna.vineet]

Sir, app me Simple microscope or Integrals-1 ke baad ke notes nhi dikh rhe...
Upload hi nhi kiye h, ya me fir se login karke dekhun?

[@MdIrshadMansoor]

52:50 sir comvex mirror ke jagah aapne concave mirror bana diya

[@factszoomit2904]

You Are Great Sir

[@jyoti.jaglan53]

Nice lecture sir 🌈🤩

[@parkeunha4067]

DONE!

[@jeeaspirant16]

Sir numericals??? 🙏Plss

[@pdfgovardhanb8093]

Nice

[@sudhanshuyadav4012]

Sir telescope me terstrial telescope deleted hai . (Astronomical telescope cbse me hai )

[@krishna.vineet]

Ho gya done🤩

[@bhartigupta4974]

💯💯💯💯💯💯

[@ShRaJaNSiNgh]

Awesome lecture sir

[@afiyaateeq6246]

🔥🔥🔥🔥

[@RohanKumar-ie4pi]

✨gr8

[@fullmooneditz]

Sir there is some issue with the app ....that the youtube notes section never works so ... can you please sort this out

[@RADHIKACLASSES]

Bhai study material mai dekho

[@fullmooneditz]

@@RADHIKACLASSES Ji Sir g thanks a lot aap bahut help kar rhe ho 🙏🙏 Dil se thankyou sir

[@harshitgarg7106]

37:20 the value of O'A' is - ue
Not positive ue sir
Pls read my comment..

[@harshitgarg7106]

@Manish positive liya h bhai...

[@anamikasingh3899]

thnku sir

[@VivekSingh-kd9fm]

Nice lecture sir

[@afiyaateeq6246]

Sir u are really great 🔥

[@Shiv0972]

Jai shree ram ❤

[@MdIrshadMansoor]

Cassegrain telescope 52:50 me convex mirror ki polish ulti side krdi sir aapne

[@priyanshupundir2952]

Sir ye topic cbse m h ya nhi

[@mahaveersuman3802]

❤️❤️

[@muskanbishnoi1176]

👍👍👍🥰

[@neelamyadavneelamyadav2526]

Sir class 11th physics vedio nahi arahi

[@adil9607]

Sir class 12 new batch kab se start hongi

[@sakshijhanjhar7847]

amazing lecture sir ji✨✨ 🙏thanku so much sir👍👍🙏

[@StudyGuru1504]

done

[@bethereal1114]

magnifying power of last = m=F°/Fe