10.Compound microscope | ray optics and optical instrument| physics class 12

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  • Опубліковано 10 жов 2024
  • Sachin sir physics
    In this video i have explained the following topic
    About compound microscope
    Magnification of compound microscope
    Follow me on insta
    Sachin_sir_physics

КОМЕНТАРІ • 602

  • @sachinsirphysics
    @sachinsirphysics  Рік тому

    👉चाणक्यनीति version 4.O | CBSE BOARD EXAM 2022-23 | SSP Sir :- ua-cam.com/play/PLCWm8jBxm8LKOxV0q9ZyQYPxFAD2_gvnl.html
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    📢📢to get handwritten notes join our TELEGRAM group :- telegram.me/sachinsirphysics
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  • @ayushojha5510
    @ayushojha5510 5 років тому +170

    DONT TROUBLE YOUR MOM.......love this line sir..........

  • @thetales4503
    @thetales4503 6 років тому +174

    Happy Teacher's Day sir🙇😊. ...sorry sir m late to wish you. ...
    sir me wait kr rhi thi ki aap aaj video upload kroge and then i wish u ...but sir aapne aaj koi video upload nii kii...
    to educate someone is honor ,u educate countless children without taking any credit...
    the knowledge u spread is priceless. ...🙇🙇we will always be grateful for ur support sir 😊😊

  • @Rajeshkumar-fy7mx
    @Rajeshkumar-fy7mx 5 років тому +33

    Sir I am a biology student .and bcoz of u I'm fall in luv with physics. Sr I want to become a physics lecturer sr pls suggest me something.

  • @taniarattan9064
    @taniarattan9064 6 років тому +2

    Teacher is lamp of nation.
    Teacher only one person
    Who serve society in real manner.
    Salute all teachers of nation.
    Happy Teachers Day

  • @mansiMBBS
    @mansiMBBS 6 років тому +16

    I fall In love with physics💓💓💓💓💓💓💓💓💓💓💓💓💓💓💓
    Thanks for clearing my concepts
    ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
    💞💞💞💞❣️❣️💝💝
    Means now I like this subject💙💜💙💜💙💜💙💜💙💜💙💜💙💜

  • @sujalgandhi5279
    @sujalgandhi5279 2 роки тому +1

    log kabhi L/fo wala formula explain nai karte, par sachin sir ne kiya. thank you sir.

  • @PULKIT_2M
    @PULKIT_2M 3 роки тому +3

    Sir aapke wajah se mere class 12 physics me 92 marks score hue the 2019 me . Aaj me bhi physics pada raha hoon.
    Thank you so much sir🙏🙏

  • @the36672
    @the36672 5 років тому

    Sir ek bhot acchi baat btau..aap jo hr vedio ke starting mai rewise krte ho na..usse saara kuch yaad aa jata hai..😃..aur aap beech beech mai bhi rewise krwate rehte ho..isse na mujhe bhot saari defination yad ho gai hai..sirf vedio dekhte dekhte..
    Tysm sirr...✊🙇

  • @suryansh4722
    @suryansh4722 5 років тому +6

    These videos will be helping students for decades.....Thanks for your dedicated efforts😊

  • @MohammadAmaan-CE-
    @MohammadAmaan-CE- 4 роки тому +1

    Sir u are the one who can make tough concpts very easy ... Boht jaghaa sai padhaa but this video clear all my doubts regarding compound microscope

  • @divyanshjoshi2965
    @divyanshjoshi2965 4 роки тому +4

    Sir I go through ncert but I didn't get few concept .I watched alot of videos but they are for JEE aspirants
    But your video was strictly based on NCERT helped alot in clearing my doubts.
    You are the only teacher think about boards student also.
    Tysm ❤️❤️❤️ sir helped alot ☺️

  • @subhashchandsaini531
    @subhashchandsaini531 6 років тому +10

    Sir u have so many talents how is this possible your mimicry is so great teaching style ,art please share with us about you

  • @divyansh4480
    @divyansh4480 4 роки тому +3

    Sir, your videos are short and watching it at 2x it become too short.
    And it really help me for my revision. 😇😇
    Thank You SIR 🙏

  • @amberkhan7364
    @amberkhan7364 5 років тому

    Maine phli baar apki videos dekhi h and jo concept mujeh purre saaaal confuse kr ra tha ut seems that it is now the best of all the physics💛💛💛💛thankuhhhsomuch sachin sir💚💚

  • @rimpalkumari9808
    @rimpalkumari9808 5 років тому

    sir mere pass koi alfaaz nahi tariff krne ki u are great lecturer... really....

  • @Ritik-m3s
    @Ritik-m3s 2 роки тому +8

    "If you are learning the Physics by clearing the concept of it, 100% you will be in love with physics." ❤

  • @sandipanroy2120
    @sandipanroy2120 4 роки тому +1

    Really sir i dont even want to touch my physics book bcoz....m very fed up with this..but now after watching your vedioes as u alaways say... i m in love with it😁

  • @AbhishekSingh-ei6jn
    @AbhishekSingh-ei6jn 4 роки тому +1

    BEST VIDEO ON COMPOUND MICROSCOPE AWESOME EXPLANATION 😎😎😎😁

  • @ayeshanisha269
    @ayeshanisha269 6 років тому +13

    I want numericals on each and every topic so can u plzz upload that and I liked this video. Soo much
    HAPPY TEACHERS DAY 😃😍🌹🌟

  • @twobrothersgamer8431
    @twobrothersgamer8431 5 років тому +5

    Sir m=d/f is make infinite image then why we use this equation in compound telescope....and sir in compoond telescope where is object placed on principal axis...please sir....

  • @aadityasingh3099
    @aadityasingh3099 2 роки тому +1

    Sir for second lens when refracted rays came to eye piece, did they used total internal reflection at a critical angle

  • @bipuldutta9414
    @bipuldutta9414 5 років тому +1

    Sir ,you are the best ...I don't have any word to tell about you..you are just amazing ...we all love you

  • @mrindia2233
    @mrindia2233 4 роки тому

    Sir watching this 1 day before physics exam . Excellent video helped a lot. God bless you...

  • @dilipkumarbeniwal4225
    @dilipkumarbeniwal4225 6 років тому

    Being one is the highest privilege but having one like u is the best blessing. HAPPY Teacher's DAY Sir.

  • @sekharjyoti1507
    @sekharjyoti1507 5 років тому +1

    Sir apka samjane ka style bhut atcha lagta hai... And now really i fall in loge with physics😊 Thnq sir for your video

  • @abhilasharani5272
    @abhilasharani5272 6 років тому +5

    sir i am new on your channel but i realize some interest in physics which was headache for me.
    This feeling is overwhelming.
    Thank you so much you are best physics teacher in the world.😘

  • @hazrabano4000
    @hazrabano4000 5 років тому +1

    Thanku sir for ur excellent explanation u clear my all douts....

  • @hardeephardeep5945
    @hardeephardeep5945 5 років тому +2

    Hello sir , good morning . Sir I have no words to describe my feelings towards ur way of teaching. However I will say you should be awarded as "one of the best physics teacher" by GJ government. I am saying this not only after watching this video but after watching your almost videos. Sir , that was the best moment when I got you as one of the best physics teacher on you tube. So thanks a thousands of lots for your this job. thanks a lot again sir...🤗🤗🤗🤗

  • @shikhanayak1958
    @shikhanayak1958 5 років тому

    Such m sir mujhe bi physics se pyar ho gya h😘😘thank you sooo much sir

  • @GauravKumar-lc6cd
    @GauravKumar-lc6cd 6 років тому +27

    Sir , me=D/fe is applicable when final image is formed at infinity , but in derivation image is at near point .so. my question that you used
    me=1+D/fe.

    • @sagniksarkar6332
      @sagniksarkar6332 6 років тому +3

      sir great work! but clarify this doubt

    • @mrigankmishra7764
      @mrigankmishra7764 5 років тому +10

      bro for the eyepiece lens...the object is approximately at its focus..so we will use the formula Me=D/fe...n we have learnt in previous lecture that when the object is at focus the formula used for magnification is M=D/fe.....

    • @dwaipayanagt
      @dwaipayanagt 5 років тому

      I'm pretty sure I'm late, but i guess writing this will help me so, what happened is that when the image is at infinity, the object is to be kept at focus ,so m=heigh.ob/f obj / height of obj /D , which equals to m=D/f of obj

    • @jobinmampilly9389
      @jobinmampilly9389 4 роки тому

      This equation is used object is in focus

  • @adityamishra370
    @adityamishra370 4 роки тому +2

    Wow sir I like your beard & moustache also way of your teaching ❣️ fabulous

  • @ishalohana750
    @ishalohana750 6 років тому +1

    i was just making ratta to remember object and eye piece but you sir made it so easy for me thank you sir!!....physics is the difficult thing ever in my life...

  • @NehaKumari-mz8jc
    @NehaKumari-mz8jc 3 роки тому +1

    Really I fall in love with physics ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤

  • @aadityamishra9512
    @aadityamishra9512 2 роки тому +2

    today i can see a drastic change in sir's presentation

  • @trademeu9151
    @trademeu9151 5 років тому +3

    Sir at last Me should equal to ( D+Fe)/Fe as the obj form b/w the focus and the poal of the eyepiece through the objective.

  • @simranraturi9605
    @simranraturi9605 5 років тому +1

    Very nice explaination ...superb teaching 😊👌

  • @swetashahi532
    @swetashahi532 5 років тому

    I don't usually comment but you made me great sir best teacher.

  • @parrayfurqaan6689
    @parrayfurqaan6689 3 роки тому +1

    I am always in love with physics since it was introduced separately in 9th class but I like the way you are teaching you go straight away according to boards other UA-camrs taking it long lectures for one chapter it is valuable when exams are near

  • @camahipal
    @camahipal 3 роки тому +3

    Sachin sir(sachhe sir) is best teacher

  • @arshiaanjum9379
    @arshiaanjum9379 5 років тому +2

    Simple mcrscp me object focus and optic centre ke beech me rakhre. then what about cmpnd mcrscp ...object focus and optic k beech me nhi rakhre?

  • @amishasaini2156
    @amishasaini2156 4 роки тому +1

    sir , nice lecture about compound microscope

  • @rakeshmeena7
    @rakeshmeena7 2 роки тому +1

    Thankyou sir for this amazing lecture 😊🙏

  • @riasharma2162
    @riasharma2162 5 років тому +3

    sir I score 92 in paper preboards . our videos our great sir ji

    • @crazyfun99
      @crazyfun99 5 років тому

      Bhai tum bs bata do ki PC circuit kaa main point kya hota hai

  • @t.hashmi1757
    @t.hashmi1757 5 років тому +1

    Aap really bhut enjoyable way me padhate h..u never make us distracted!!

  • @muskansingh9051
    @muskansingh9051 5 років тому

    Your way of explanation is very nice......... very easy to remember all things..... Thanks to make physics easyyyyyyyyyyyy🙂😁

  • @sanjeevkumarsingh8000
    @sanjeevkumarsingh8000 4 роки тому +1

    Sir you are too good, as well as your lecture

  • @editzgamerzff2114
    @editzgamerzff2114 6 років тому +11

    ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤ i love sachin sir physic mujhe lag ta hai issh bar 12 board me 80+ rakunga

    • @devilbaby8034
      @devilbaby8034 6 років тому

      Tmmammm

    • @yashu__-kl8fd
      @yashu__-kl8fd 5 років тому +1

      Bhai 70 no. Ka paper hi hota hai ....😂😂

    • @harsh.sharma
      @harsh.sharma 5 років тому +1

      @yashmishra Nonsense He is talking about percentage,........

    • @souravbarak5527
      @souravbarak5527 5 років тому

      Kme na kre tu 😂😂😂😂😂

    • @faridashakir345
      @faridashakir345 5 років тому +2

      @Biswaranjan Lenka
      Sir hamesha bolte h marks par focus mat karo excellence ka picha karo... Marks apne aap hi 80 kya 100 /100 bhi aa sakte h

  • @TiwariAdvik
    @TiwariAdvik 4 роки тому +1

    You r next virson of physic wallah

  • @syednida9038
    @syednida9038 4 роки тому

    Really useful....in this pendimic ..... sir thnxxx for help

  • @ashapandey922
    @ashapandey922 4 роки тому +1

    Sir...wht will be the resultant of focal length of two lens when the optic centre is differnt for both ...

  • @GitaDevi-jq1sx
    @GitaDevi-jq1sx 5 років тому

    Very lovely explanation and u r very amazing English speaker

  • @shitalpandya796
    @shitalpandya796 6 років тому +1

    Happy teacher's day in advance sir....
    U r the bestest teacher i could ever get....
    Thank u so much sir.....
    May God give u all happiness sir....😇😇😇😇😊😊❤❤

  • @MynkSharmaa
    @MynkSharmaa 6 років тому +1

    Sir can you please explain why the image formed by object is not real and behind the object as in the case of #simplemicroscope.
    (the one ray is also passing through optical centre and other parallel to principal axis through focus) same case
    Please reply🙏🙏

  • @Cdt__Ashutosh
    @Cdt__Ashutosh 3 роки тому

    Sir u told that when focal length is dec. Lense became shorter and image will not be sharp image /perfect image .
    But for small lense the image is sharp as all the rays meet at focus that results in the formation of sharp image .
    Plzz clear my doubt .

  • @kanupriyaart8531
    @kanupriyaart8531 2 роки тому +1

    watching lctures even in 2021 luv u sir

  • @ajaythakur4477
    @ajaythakur4477 4 роки тому

    Sir you are very best from physics walla sir

  • @rajankumarsingh2420
    @rajankumarsingh2420 5 років тому

    Sir
    Your voice is too good
    And mathod of teaching is grate
    This is the reasion that i see your vidio with english while i am a up bord student

  • @subratakoleindia
    @subratakoleindia 5 років тому

    Sir in case of the compound microscope after the rays pass through the eye piece how come it reflect back?You should have shown it with dotted lines and without direction arrows..

  • @SanthoshKumar-ge7vw
    @SanthoshKumar-ge7vw Рік тому

    I already fell in love with KHAN ACADEMY👍

  • @Melodic_Lyrical_Landscapes
    @Melodic_Lyrical_Landscapes 5 років тому +5

    Sir plZ plz clear my confusion...
    I want to find this magnification in term of v0 and ue

  • @parvezpatel9028
    @parvezpatel9028 5 років тому +2

    SIRR YOU ARE INCREDIBLE IN TEACHING PHYSICSS SIRR YOU ARE AMAZING AND PLEASE KEEP TEACHING US LIKE THISS IN AN AMAZING MANNER THANK YOU SIRR

  • @vishalparida264
    @vishalparida264 3 роки тому

    Sir resolving power, why does sky appear red...polarisatuon wagera kuch nhi padhaya

  • @dpriyadharshan7491
    @dpriyadharshan7491 4 роки тому

    Really understanding
    Very good teaching

  • @sarthakagrawal2028
    @sarthakagrawal2028 5 років тому

    Excellent explanation , with step by step details covering all the basics. Hats off !!!!
    Yes there is indeed problem in ray diagram for eyepiece but we would manage it.

    • @sarthakagrawal2028
      @sarthakagrawal2028 5 років тому

      The explanation that sachin sir provided is so superb that such a small mistake could be easily neglected.

  • @nitinpandey7996
    @nitinpandey7996 5 років тому

    U r awesome sir....i saw ur vdo 1st time and i get clr the concept... Tq

  • @nupursarkar8397
    @nupursarkar8397 3 роки тому +3

    Sir oswal book bji apke video ka suggestion de rahe hai

  • @jashan8525
    @jashan8525 2 роки тому

    Beautiful way of teaching sir

  • @makeupwithme.ftgarima3526
    @makeupwithme.ftgarima3526 5 років тому +4

    I got 88 in physics pre board2.
    Thanxxx a lot sir🙏🙏🙏

  • @aaryasannikumarjha5477
    @aaryasannikumarjha5477 5 років тому

    Sir real me aapki vajah se hi mera ab physics favorite ho gya hai
    Thank you so much sir

  • @badrinarayannayak5757
    @badrinarayannayak5757 5 років тому

    Sir, i have studied your all topics of ray optics ..And it was incredible..I Sometimes i feel like that physics hard ..But after ur explanation ,I think that I can really enjoy with physics...
    Thanku u so much sir..

  • @priyashrivastava3881
    @priyashrivastava3881 3 роки тому +1

    U r great sir...
    Thank you💜

  • @antonydebbarma9312
    @antonydebbarma9312 5 років тому

    Sir the length L is distance between the focus or is it the distance between the two lenses.if we use the former numericals get unsolvable in some cases

  • @jyothiprabham.j2276
    @jyothiprabham.j2276 4 роки тому

    Sir why we not used term angular magnification here why just magnification??

  • @modassirali5734
    @modassirali5734 5 років тому

    Sir I have a doubt..... sir jo aapna formula use kia eyepiece ke magnification batate waqt i.e. m= d/f .... Sir ye formula tb ke lia tah n jb image infinity pr form ho ri thi.. or simple microscope pr to m= 1-d/f ka formula aapna bataya hain ...sir plz hmari confusion dur kr dijia

  • @unnikrishna4060
    @unnikrishna4060 5 років тому

    Your videos are really better than Byjus

  • @renusinha3946
    @renusinha3946 5 років тому +2

    Hii sir... I'm Vivek Ranjan..... I really loved the way you taught us...... Superb explanation.... Your teaching compels us to pay attention.... Really it's helpful..... Many videos are there but you teaches very well 😊😊😊😊

  • @adeshyadav850
    @adeshyadav850 5 років тому +4

    Get ready to fall in love with physics nice😁😁😁😁

  • @RinkiKumari-qw6lq
    @RinkiKumari-qw6lq 5 років тому

    M=d/f when the object is at focus point ..here the image is at infinity which we can't see but sir uhh tells that here the eyes can see the image comfortably means in relaxed way,,,how sir???

  • @aryanparmar26
    @aryanparmar26 5 років тому

    The magnification isn't negative in case of compound microscope ?
    Which one is correct
    1. L/fo * D/fe or
    2. -L/fo(1+D/fe)

  • @padmbhushansingh8758
    @padmbhushansingh8758 6 років тому +1

    Sir I am lil bit confusing about the beta angle.Where it has to take. What it actually indicates ? In book , it has taken at lens and in the video you took it at focus ( triangle ORP ) . Can we take here anywhere ?

    • @padmbhushansingh8758
      @padmbhushansingh8758 6 років тому

      @@sachinsirphysics thank you so much sir. You really made Physics so much easy. I also aapply your concepts while teaching..

  • @geetakshiwadhwa3906
    @geetakshiwadhwa3906 4 роки тому +3

    Sir, why the magnification of. Compound microscope is product of. Magnification of objective lens and eyepiece ??

    • @sumarakashyap9657
      @sumarakashyap9657 4 роки тому +4

      after magnifying the height from object lens that height will magnify more by other lens.
      let h=object height, h1=height formed by object lens, h11=height form finally.
      m1=magnification of object lens
      m2=magnification of eye lens
      m=final magnification
      now h1=(m1)h
      and h11=(m2)(h1) =(m2)(m1)h
      therefore (h11/h1)=(m2)(m1)=m

  • @rajulrani6984
    @rajulrani6984 6 років тому

    A real teacher u are sir,nice explanation

  • @pswabc155
    @pswabc155 5 років тому

    Sir m=d/f and m=1+d/f mein fark kya ha ?? I mean application kaha krenge dono Ka??

  • @jyotiprajapati4034
    @jyotiprajapati4034 4 роки тому

    Thnx sir ... for give me information to related compound microscope😊😊😊

  • @gaganjotkaur8043
    @gaganjotkaur8043 5 років тому

    thankyou sir by watching your video m feeling confident

  • @understandingconcepts9788
    @understandingconcepts9788 4 роки тому

    Concept of virtual object is God in this chapter ❣❣

  • @ummatnesha5618
    @ummatnesha5618 3 роки тому

    Sir mera ek confusion h ki bhle hi image large mil rha pr ye to inverted h, to Kya hme inverted hi dikhega

  • @AIIMSSONIAN_PK
    @AIIMSSONIAN_PK 4 роки тому

    Tubelengh aur lenth of microscope me kya diff hai

  • @yashsahota2403
    @yashsahota2403 3 роки тому

    U expain this topic very easily. Lots of love to u ❤👌🏻

  • @Kumaunsafar123
    @Kumaunsafar123 3 роки тому

    Wow sir I easily understand this derivation..

  • @sukhdeepsingh9223
    @sukhdeepsingh9223 6 років тому

    Sir while doing numericals on compound microscope do we need to use sign conventions pls reply fast

  • @the_sahil_shows
    @the_sahil_shows 4 роки тому

    if the value of refraction is 0 which is passing from optical center ....
    then what is value that object B in first lens

  • @nkorpal
    @nkorpal 6 років тому

    Bachha Party ke saath Bada Party bhi aapke video dekhti hai ...........any how dont take it other way ........Genius Teacher....Great ........Now u are Best ... Workhard to be unique in India(at least)

  • @saurabkumar6497
    @saurabkumar6497 5 років тому

    Sir you are doing great work hats off to you may god solve all your problems and bless uhh

  • @rajugupta8488
    @rajugupta8488 4 роки тому

    Thank u sir you are my legend not only for the physics but everything

  • @brijbashilalsharma2782
    @brijbashilalsharma2782 4 роки тому +1

    Sir dekhte hi yad ho gya

  • @rajalaxmiparida1068
    @rajalaxmiparida1068 5 років тому +4

    Sir if the rays actually meet then how can virtual image be formed(in eye piece)??

  • @hitstargaming
    @hitstargaming 4 роки тому

    Ek baat smjh ni aayi sir...agr focal length choti hone se image achi nii milegi to tb kse achi bnegi jb phle wale lens ki image ki image banegi...kuki wo image bhi to eye lens k pass bnegi...to uski focal length choti hogi na...phir bhi kse....plz sir reply krna...aap khtw ho ki jo bhi pblm ho comment section khula h puchne k liye... isliye pucha h..plz btana sir...

  • @aditimukherjee6433
    @aditimukherjee6433 6 років тому

    Sir because of ur videos . I feel that I can't give up physics. Sir u really teach very nicely , thank u sir