How To Use LENS MAKER FORMULA : Sign Convention and LENS NUMERICALS: Class X :ICSE /CBSE PHYSICS
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- เผยแพร่เมื่อ 7 ส.ค. 2017
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1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey.
2)Live Classes and recorded Video Lectures (New, different from those on TH-cam)
3)PDF Notes of each class.
4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level.
5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture.
6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021)
7)In case you missed a live class, you can see its recording.
8)You can view the videos any number of times.
9)Each chapter will be discussed in detail with all concepts and numericals
10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams.
***Test Series for XI & XII***
We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year.
The test series follows very logical sequence of Basic to Advance questions.&
Evaluation of Test and Solution to all the questions at the end of the test.
Refraction of Light Class X : CBSE / ICSE : Bending of Light : Bending in Glass Slab And Prism
• Refraction of Light C...
What is Refractive Index ? CLASS X : CBSE / ICSE : Refraction Of Light 02
• What is Refractive Ind...
Snell's Law : Class X CBSE / ICSE : Refraction Of Light 03
• Snell's Law : Class X ...
Glass Slab : LATERAL DISPLACEMENT of Light : Class X CBSE / ICSE : Refraction Of Light 04
• Glass Slab : LATERAL D...
Real Depth & Apparent Depth : Class 10 , 12 ICSE / CBSE : Refraction of Light 05
• Real Depth & Apparent ...
Angle Of Deviation in PRISM : MInimum Deviation Condition : Class 10,12 CBSE ICSE ISC
• Angle Of Deviation in ...
Critical Angle & Total Internal reflection : Prism ray diagram : Class X: ICSE
• Critical Angle & Total...
Prism Ray Diagrams || Path of Ray through Prism || Total Internal Reflection || Critical Angle ||
• Prism Ray Diagrams || ...
LENSES :CLASS 10 : CBSE & ICSE : CONVEX AND CONCAVE LENS: Characteristic of IMAGE :REFRACTION:
• LENSES :CLASS 10 : CBS...
How To Use LENS MAKER FORMULA : Sign Convention and LENS NUMERICALS: Class X :ICSE /CBSE PHYSICS
• How To Use LENS MAKER ...
How to Solve Lens Numericals | Lens Maker's Formula | SIgn Convention in Lenses| 10 CBSE / 10 ICSE
• How to Solve Lens Nume...
DISPERSION & SPECTRUM of LIGHT : CLASS X , XII : ICSE / ISC/CBSE
• DISPERSION & SPECTRUM ...
10 ICSE : Physics chapter 4 : Refraction at Plane Surfaces : Imporatnt Compilation
• 10 ICSE : Physics chap...
Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App.
Download the App from Google Playstore ( bit.ly/2SHIPW6 )
Physicswallah Instagram Handle : instagram.com/physicswallah/
Physicswallah Facebook Page: facebook.com/physicswallah
Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20
Physicswallah App on Google Play Store : bit.ly/2SHIPW6
Physicswallah Website: physicswallahalakhpandey.com/
LAKSHYA Batch(2020-21)
Join the Batch on Physicswallah App bit.ly/2SHIPW6
Registration Open!!!!
What will you get in the Lakshya Batch?
1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey.
2)Live Classes and recorded Video Lectures (New, different from those on TH-cam)
3)PDF Notes of each class.
4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level.
5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture.
6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021)
7)In case you missed a live class, you can see its recording.
8)You can view the videos any number of times.
9)Each chapter will be discussed in detail with all concepts and numericals
10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams.
****Test Series for XI & XII****
We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year.
The test series follows very logical sequence of Basic to Advance questions.&
Evaluation of Test and Solution to all the questions at the end of the test.
Refraction of Light Class X : CBSE / ICSE : Bending of Light : Bending in Glass Slab And Prism
th-cam.com/video/euj-sXYys9o/w-d-xo.html
What is Refractive Index ? CLASS X : CBSE / ICSE : Refraction Of Light 02
th-cam.com/video/0peBVJuZXKE/w-d-xo.html
Snell's Law : Class X CBSE / ICSE : Refraction Of Light 03
th-cam.com/video/sOYWas_P_F8/w-d-xo.html
Glass Slab : LATERAL DISPLACEMENT of Light : Class X CBSE / ICSE : Refraction Of Light 04
th-cam.com/video/rDAHDj-qPsE/w-d-xo.html
Real Depth & Apparent Depth : Class 10 , 12 ICSE / CBSE : Refraction of Light 05
th-cam.com/video/UvlSe59Zsxo/w-d-xo.html
Angle Of Deviation in PRISM : MInimum Deviation Condition : Class 10,12 CBSE ICSE ISC
th-cam.com/video/Few1Uip06nc/w-d-xo.html
Critical Angle & Total Internal reflection : Prism ray diagram : Class X: ICSE
th-cam.com/video/9MNsxX-__xM/w-d-xo.html
Prism Ray Diagrams || Path of Ray through Prism || Total Internal Reflection || Critical Angle ||
th-cam.com/video/r5x53NkAgiY/w-d-xo.html
LENSES :CLASS 10 : CBSE & ICSE : CONVEX AND CONCAVE LENS: Characteristic of IMAGE :REFRACTION:
th-cam.com/video/_4AidWmr9go/w-d-xo.html
How To Use LENS MAKER FORMULA : Sign Convention and LENS NUMERICALS: Class X :ICSE /CBSE PHYSICS
th-cam.com/video/PjiTB9eAyho/w-d-xo.html
How to Solve Lens Numericals | Lens Maker's Formula | SIgn Convention in Lenses| 10 CBSE / 10 ICSE
th-cam.com/video/uU26G59tnKU/w-d-xo.html
DISPERSION & SPECTRUM of LIGHT : CLASS X , XII : ICSE / ISC/CBSE
th-cam.com/video/ZvsQUKyJHmU/w-d-xo.html
10 ICSE : Physics chapter 4 : Refraction at Plane Surfaces : Imporatnt Compilation
th-cam.com/video/PINlGOKF9Lk/w-d-xo.html
Ye lens formula hai, Lens maker's formula me Refractive index of glass & focal length ke bich relation hai
@@mohitdahiya1224 tmig nhi h kya tumha bolna ki...........
Ki kasa kisi teacher sa bola gata h,, jo ki tumha free ma pdha rha h
@@saritadev6604 u r right......seriously they just don't hv any manners........shameful
Yes you are right sarita whatever you said
@@partimashahi1153 thanks
2024-2025 batch 🙋♀️
20223-24 batch 🙋
Are you from future
Me 🙃
Legends waching this video 😅
Mee😢
Mee
Rare to find teacher like you, who makes physics so simple to understand
English aur hindi ke transition me sir ka tone kitna badal jaata hai!😂
Sahi pakde hein
😂
Sir ne ek bar kaha tha ki mene English Oxford se li hai😂.
But I love sir for the teaching so well🙏.
@@uniqueid2414 ff
Yeah, he speaks normal in hindi but lil bit louder in English.😂
Please dont disrespect your teacher.....he is teaching for us... He could have taught cbse ...but he chose icse only bcoz of us........atleast he is teaching....and that totally free of cosst.......may u live long sir.....do ur best and LET THE DOGS BARK BCOZ HATERZ GONNA HATE...
😯
Comments me to kahin dikh nai rha ki sir ko koi disrespect Kiya hai
@@arya_4883 main bhi vohi dhoondh rha tha
I really respect alakh sir even I have taken the membership. But sorry I can't stop my laugh watching the 5 years ago alakh sir
6:26 the question reads 😂😂😂😂
best explained ever...!
Kaise best explanation hua bhai numerical galat hai
@@RaushanKumar-xj2cg Bhai agar tu sirf ek numerical dekh Kar judge karta hai......to tu tujhse bada immature insaan koi nhi hoga....!!
Kaise immature insan hai
Dekhange too Pura n?
Ha mante hai ke explanation best hai too usko kharab kar denge sab kuchh best rahna chahiye n?
A day before physics board exam ..... I don't know lens maker formula at all..... I said to myself " darna kyon hai physicswallah hai na """ thank you sir ....greatly indebted to you
Kitne percentage aaye the?🙌
@@peaceinmoto4022 🙂
@@peaceinmoto4022 💀💀💀💀
Cringe but fine
This is white magic
How can you teach so good???😃😃😃
I can certainly tell you practise teacher sorcery.
When I saw your videos, and came to your channel to subscribe, first thing i checked was whether or not you are consistent in putting up videos till date or not? Have seen many experts start a channel and leave it midway. Please keep posting. You are more than awesome and a hope for physics learners. God bless you with the energy to pursue this passion.
thanx ashish , yes i will cover full syllabus , uploading of videos is a tiring process thats why it is taking time , else i can teach whole topics in one day only
ohh! sir... but i don't think so that anything will go inside the students head in one day covering all the topics..!! but one thing to say.... is that your explanation is awesome...,!!
Ashish Pa
agree #ashish pal
@Ashis Pal Where from you?
U are just like my friend who teaches everything before 15 mins of my exam
I know if you are watching 👀 this video now then I can tell that tomorrow is your physics exam, because that's what I am doing now watching his video now before my exam 😁😁
So, chalo dekhte hai feer ha ki kal ka paper kesa jata hai
Me tooo
2:28😂😂😂😂love you sir from North east
Me too frm north east
Good to see our North eastern brothers and sisters
Nort east or tripura
@@Arindamdebnrh wtf
Uttar pradesh
Don't stop making ur spectacular videos...I always get massive help from your videos..that way you teach......clears the doubts inside my mind!!!!! .......You generally teach all ICSE chapters in Physics and I would like it if you complete the syllabus really fast but there's no hurry!!!! I never loved reading or learning from a phone but now you seemed to change the aspects even.....I am obliged to call you a sir!
2:28 sir ne Hindi bol hi di🤣🤣🤣🤣
Yea I am watching that rn
Sir be like: chal tere aise ki tesi ab apun hindi bolega ......😂
sir ne per bola kab ki vo eng hii bolenge................comeon kuch bhi bato pe majk met udhaya keroo
🤣🤣
😂😂😂😂😂😂😂😂😂😂😂
Tomorrow is my phy boards exam...any one like me???😂🥺💔
Me👋
Me😔
Yes sir
Aja
me
A god in teacher's face
2 hrs before board ✨️
Same lmfao 💀. Best of luck !
@@yours_ann7160 best of luck gurllll
@@mail-eg7cq hey! How did your exam go?
Batch 2023-24 attendence lagao ❤
Me watching one day before board exam 😢
us bhai us
us bhai us
Tomorrow is my physics board and now I have started to study 😅
Same 💀
@@whome.sanchikal ke exam mein lagta hai fail 😢😢
Legend watch one day before board exam 😂
2024--2025 Batch🤚🤚
1 night before present
Same☠️
4:00 am
Tomorrow is my boards 2024 batch 🙌🏻
U covered 1 exercise in 10 mins truly appreciate your help.
wow amazing teaching skills. obviously one of the best teachers on youtube. best explained ever..
Today is my physics boards 💀
Tommorow is my physics boards 😂 and im watching 4 hours before exam
You have became my only hope when I just determined that I will study science in most interesting and efficient way instead of learning and memorizing topics as I always used to do.
Thank you sir !! finally understood how we get object distance in negative !! 🙏🙏
Yes
Sir. Whatever be your way of teaching, you're truly an inspiration. You teach so so so well, sir. Keep doing this, sir. Thank you so much sir.
@Siddhant Singh perv 😤
Thank you so much! This helped me a lot in my physics exam
😊Thanks sir for being here for us... your work is appreciable😊☺...
2:28 sir ki hindi bhi nikal hi hyi😂😂😂😂😂😂😂
so true buddy nice catch
Yaaah!! 😂
Hes frequent
yaa u r right
Yaaa
I forgot that's English version of our Alakh sir. Looking slim & more handsome sir.😆
Excellent way of explaining sir. Great job!!
Love to watch your videos. Btw i m a mathematician but due to TET exam i hv to summarise all the things of physics what i hd learn... N then i search on youtube n then gt ur tutorial.. Like it bro...
Thank you sir, you cleared all my doubts on sign convention
Who knew that this man will own 1.2B $ ed tech company today!
6 yr ago🥲🤌
When i was in 7th class🥺
One of the best teacher who has the urge in him to make students better.
He could have easily taught in vedantu or unacademy like online institutes but he chose to put up his own channel....
Hope the channel grows day by day...
Loads of love and wishes...
~SAMADRITO
Student of Adamas International School,Kolkata.
What is ur insta I'd?
No body in this whole universe can teach like Physics wallah sir.🙏🙏
Your amazing explanation is the universal truth of physics, made easy.
Pagal Dekh le Teri karduth mane
Yessss
From Physics Wala to Physics Wallah, sir we are with you And will always be thankful to you for your full-hearted effort 😊😊
Ap Ka name Kai hi
You are the best teacher
You always clear all the concept in the first time I don't need to repeat and repeat the video for concept clearing
Thank you sir
God bless you
Keep up with the good work. Your videos are really very helpful
Who is watching this lecture in 2022
I'm watching this before my exam sir
We don't get enough for preparation and you are my only hope
Thank you so much ❤️❤️
KT 😂 😂 😂 😂
@@annemarievideos385 😂😁
U r great sir... U clear all my doubts.. Thank you sir...
Best teacher ever I seen
After seeing your video lens numericals are crystal clear sir😀... Great Job sir👍🙏
2023 student anyone !?
Yeah it's me 🥲
Yes
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Yes
Us time me aur aaj me aap bht change ho chuke hai🔥🔥
Mai to Sir ko Itna famous hone ke baad dekh raha hu
❤😊
Aab to Sir ki Sadi bhi ho gayi hai 😁
8 November 2023😊
You are such a great teacher. Thank you so much.
8:39 My math teacher when i forget to put sign for a solution in the exam😂
Same unlog ka face dekhne layak hota hai🤣🤣🤣
@@unknown.9177 ya😂😂🤣
@HYPER ENERGY 😛😛😂
Armys are everywhere 💜💜
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if you are here and your boards is tommorow you are legend 😛
Your teaching is awesome sir😊
can someone tell when is the image distance i.e v in convex lens positive or negative?
Image distance is always positive for a convex mirror. The focal length is positive for convex lens and mirrors. 'f' is negative for concave mirrors and lens. object distance is always negative for all the lens & mirrors.
@@caldomgaming9471 no it is not always positive, because in some numericals of convex lens I have seen image distance being negative.
Its positive when the image formed(v) is real and negative when image formed(v) is virtual
8:23
Isko mind me karne k liye 1 trick hai
F1=10cm diya hai iska matlab 2F1=20cm hoga aur object bhi 20cm diya hai matlab object is at 2F1 so image will be formed at 2F2 jus opposite and at same distance....
Ty to ALAKH SIR for te best explaination
Thx yaar will save a lot of time in mcqs
A blessing for students like me ❤️
Hlo
@@peaceinmoto4022 aurat ka chakkar hai babu bhaiya, aurat ka 😂😂
@@07.sparkz na Bhai tumlog ek ladki aur ladka ka resta ko negative side sey dekh rahe ho wo Meri behan ho sakti hai
Bye in comparison of hii
@@yogeshgahlawat2868 😂😂
Sir please tell me that why we take 1/f,1/V and 1/u? why we take one above the spherical mirror or lens terms? If we not take one then what problem will create..????
Answer nahi milega
Vo indian Christian bhi to ho sakta hai
It is just derived in latest video of ray optics 1 year ago... You can see how it is derived
Sir you are the awesome teacher i ever met....or may met in future ....sir you have the most different style of teaching...thank you sir for putting soo much efforts for making these videos and helping us...thanks a lot sir🙂🙂
i am so thankful to you sir . I have watched many videos about sign conventions but i did not understand. But now I understood . Thanks a lot sir..........
2024-2025 batch 👉👉
All doubts and confusion clear sir from this video thank you so much sir👍👍👍👍👍👍👍
i subscribed u when u were having 1k but now very happy to see your 200+k subscriber
Maine video mirror se lens ka bdla aur sir ne to India ko usa se bdl Diya...😂
Btw nice explanation as always
😂😂😂😂🤣🤣🤣
Best teacher for every student😄😄
@physicswala
i m confused...we say that that a slanting line coming goes straight from the lense but the example you gave the slanting line went slanting and not straight??? how can this be possible????please hurry tell sir!!!!!
No this example is wrong..you are right
Thank you for clearing my doubt
Wow what an wonderful explanation it was. Thanks a lot Sir.🙏🙏🧠🧠
Your all videos are learnable. I have learnt this chapter from three teachers and the result was confusion in image formation of spherical mirrors and lenses but your videos cleared everything thanks for uploading the whole series but plz try to explain in hindi because its makes the leaning more comfortable and interesting nhi to pura lecture boring ban jata hai
East or West,,Physics Wallah is the best 👌 👍 😍
Have board exam in 4hrs 😢😢
Sir ,very well doing a great job
Fabulous never see a teacher like you
We'll congratulations sir on your achievement sir thank you
Beat explanation sir , it's amazing sir you make theory crystal clear like diamond, salute you sir, hats off sir for your explanation
We all may have new facilities to study, new teachers with smart boards and all.. But still all we do is to come and understand the concepts from these old and nostalgic lectures.. ❤
My exam is in 3 hours from now. It's 7:00 am😂
Loved ur teaching Sir... I'm very happy..
Hahaha
Sir,please upload ICSE calorimetry numericals. Plz plz plz.........…....…
Thankyou for clearing my doubt 🙏🏻
Very excellent explanation.......we loved it
Who is here after 5 years
6 years 😅
Well Explained
Sir if mirror is not given in question so ,which sign i put in v,u,m and f ..can you plz tell me
sir ,
shubham
fantastic explanation................thanks a lot sir
I am from future to tell you that you are 101 unicorn startup in 2022 and most likeable educational platform of INDIA 'PW' 🎉🎉🎉🎉🎉🎉🎇🎆🎆
SUPER DUPER LECTURE I LOVE IT THANK U SIR.
Best explanation especially about this topic sir.. Thanku
Watching 6 hours before exam🙀
Sir,you are better than all
Yes bhai
I think this is the shortest lecture of Alakh sir for phyics lecture 😀😀😀
he is not well but still teachng...thats why he has so much love now,,....always in the cushion of our love
how do u know?
@@atharvakrishna6729 you can understand by his voice
Explanation was so nice........ Sir thnx for making this video....... 🙏👍👍
Thanks very helpful for me
Sir maine aapka light chapter full 1 hour wala dekha tha ... earlier I thought that this ch was very difficult ... but after watching the whole video vo ch mere liye halwa ho gaya ... Image formation toa halwa ka bhi halwa ho gaya ... Your explanation and way of teaching is very amazing all over TH-cam. 🔥🔥🔥🔥🙏🙏🙏🙏🙏🙏🇮🇳
I would suggest ki tum ray optics ke class 12 ke lectures bhi dekh lo agar interest ho toh.. It is really easy the way he explains it... It is really best to study geometrical optics in class 10 only as geometry is not taught after class 10 in maths..
Best explanation I have ever seen
Thanku sooo much sir for every topic of each and every chapter of class 10 icse ...I m really grateful for u to have u as my physics teacher ..due to ur efforts in ur videos my physics exam went really very well ..thank u so much sir ❤️ ..PW is always an emotion ❤️