For PDF Notes,best Assignments visit and DPPs@ physicswallahalakhpandey.com/ Physicswallah App on 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/ ALPHA Class 11 Chapter 2 : Units and Measurement 01 - Introduction to Dimensions JEE/NEET kzfaq.info/get/bejne/i9uqjbyHt8nJnY0.html Units and Measurement 02 || Dimensional Analysis : Principle of Homogeneity of Dimensions - JEE/NEET kzfaq.info/get/bejne/g95_Z9Rjp7KlpoE.html Units and Measurement 03 || Dimensional Analysis : Deriving the Formula of any Physical Quantity kzfaq.info/get/bejne/gMBopcZhl7arZaM.html Units and Measurement 04 || DPP -1,2 & 3 Solving || Best Questions on Dimensional Analysis JEE/NEET kzfaq.info/get/bejne/eZNjgqiprrzZd4U.html Units and Measurements 05 || Significant Figures JEE/NEET kzfaq.info/get/bejne/mp-Aiqpi3djTZmw.html Units and Measurements 06 || Error Analysis - Part 1 JEE/NEET kzfaq.info/get/bejne/j6-Fe9GVx93Sink.html Units and Measurements 07 || DPP - 5 Solving || Error Analysis - Part 2 : Best Questions JEE/NEET kzfaq.info/get/bejne/idyGpMl11qyzhGw.html Units and Measurements 08 || Vernier Calipers - Best Concepts with Basic to Advance Questions kzfaq.info/get/bejne/gLimkqt7y628gJs.html Units and Measurements 09 || Screw Gauge Or Micrometer Screw Gauge - Best Concepts with Numericals kzfaq.info/get/bejne/iLyhoN2mrd-ncWg.html

It's great you are working hard for students....I really appreciate physics wallah efforts ....

I am from batch 2024-25 But have a lot of respect towards old teaching videos of physics wallah

2023-2024 batch students still came to understand such topics by our only Alakh Sir.🎉

24-25 class 11 , still watching these lectures . alakh sir tussi great ho

2022-2023 still old lectures are best than new lectures 🔥☀️⚡💥Fire - Alakh Sir

Sir singing song My whole family--🙄🤨😒 Are you studying or enjoying?? Me- Enjoying my studies!😚😽

let me know how many 2024-25 batch students are there.....😅

old is gold like alakh sirOLD lectures are gold for new batches

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Let me know how many Students are there from batch 2023-2024...😅😁

2023-2024 still these lectures are fire 💯

thank you sir for explaining this concept in such manner, now significant figures is completely clear to me it helped me a lot.

Crystal clear Revolution is already begin But old is gold Best lecture Thank you guruji 💕💕💕

Th way he sings and teaches and crack jokes in between it really shows how he enjoys teaching... what a teacher I wish every school and coaching institutes had one such !!!!

Answer = 5.6×10⁴ Solution = (Given) 5.8×10⁴ - 1.5×10³ Changing 1.5×10³ into 0.15×10⁴ (without disturbing the order of significant figures as ALAKH SIR said - 46:26 ) Now 5.8×10⁴ - 0.15×10⁴ (5.8 - 0.15)10⁴ 5.65×10⁴ Now rounding off at, least decimal place we get 5.6×10⁴ (no change in magnitude 10⁴ while doing rounding off process) ..... 😊

❤🌺nice lecture 😊 I can understand all the topics by alakh pandey sir... Thanks word is so much small word for me 😊

Carryminati ki video se be jada dangerous hai sir ki video . Without earohone nhi dekh sakte😂😂 Pta nhi chlata kab ladki ko purpose marne boll de . Kam se kam carry ka hme pta too hai gali dega earphone lga lo yha too earphone lgane ka be moka nhi dete sir😂😂😂😂😂

Correct Answer is 5.6×10⁴ Explanation 👇 5.8×10⁴ - 1.5×10³ = 5.8×10⁴ - 0.15×10⁴ = (5.8 - 0.15) × 10⁴ = 5.65 × 10⁴ Since 6 is an even digit placed just before digit 5, Therefore, After Rounding off the correct answer will be 5.6×10⁴

सर आपने बहुत ही ज्यादा संघर्ष किया है मैं तो कहता हु की सभी स्टूडेंट्स को भी आपकी तरह ही मेहनत करनी चाहिए Love You sir ❤❤

Woww!! Fun, comedy, enjoying of legend's song & knowledge getting in one lecture is an amazing🤩🤩 Always loved the way you teach us sirrr ❤❤❤

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sir your smile in the begning of the lecture really makes our faces smile

The way he teaches phy and chem is outstanding... although I don't like phy at all but I am trying hard to cope up with this....

amazing lecture everything is clear.

God bless u sir g for educating so many students who cannot afford to pay large fees

The day ,when the school teachers learn how to teach like u .i will have a faith in Indian education system . A lot respect to u sir❤️

These lectures are always cool

Sir explained every thing step by step...and make us remember during the class time only...Thank you sir❤😊

Alakh sir is A-LAKH times better than other teachers.......And doesn't take A-LAKH rupees unlike others for his teaching

u are god for the poor students which cannot afford expensive high quality education ........thnx alakh sir for giving such a quality education at free of cost..u are the best teacher

Old lecture are batter than new lacture keep continue this series

Thank you Sir For this Explaniation 😊😊

1. 1:20 Introduction 2. 6:01 Rules for calculating Significant figures 3. 23:22 Many numerical 4. 29:26 Rounding Off significant figures 5. 35:26 Calculations in significant figures a) 38:42 - Addition and Subtraction b) 50:05 - Multiplication and Division 55:00 padhai karte raho! All the very best, PWians!

Sir ki singing acchi lagti h in mid of the video..... Full interaction like a live class 🤘♥️♥️♥️♥️♥️♥️ Agree???

Noone can teach like him❤️

Wow how interesting this topic is😊

He interprets everything in a comprehensive way . Indeed he is one of the best physics teacher.

Dil jeet liya sir aap ne ❤ Ab mughe bhi physics se pyar hone laga hai

Thanku so much sir You are amazing😃💌

Thq sir aap bhot acha smjhate ho muche abb smjh ane lgg gyi hai physics thq so much sir☺️☺️🙏

It's 2022, and ou're still the best physics teacher i have ever seen in my ENTIRE JEE PREPARATION.

Thank you so much sir, RESPECT FROM HEART ♥

Thank you so much sir for these lectures .....................it help us a lot .........thank you

Only one word to say MASTERPIECE

So i was watching this lecture, my mummy came silently and stood beside me, she observed him and said he is a nice teacher..then only sir started singing.. Then she smiled and said he is a good singer too.. Sir ki taarif sunkr bohot achcha laga😇😇(mai to unki taarif krti hi rhti hu)

Sir had made studies more interesting..... unlike most of our boring school teachers. Great love and respect to PW❤

Golden lectures 🔥🔥🔥

Thank you so much sir.. For clearing my all doughts.. ❤

This is Alakh Sir's true potential which was hidden in him for years but he converted it into kinetic energy. Like For Alpha Alakh Sir

Who thinks alakh sir is the best teacher on KZfaq Hit like👍👍👍👇👇

I am feel happy listening ur lecture sir ❤🎉🎉

Thank you so much sir ❤ All the concepts are crystal clear 😊

No one : Literally no one : Alakh sir :even thi isliye jane diya odd hoti toh ek bdha dete Meme guru🤣🤣🤣🤣

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Thank you so much sir 🙏

" yess my name is alakh pandey and this is ur beautiful sa channel physics wallah " makes my day !!

Sir when u smile😀 in the beginning of lectures u look so pretty 🤗❤and the way👣 u teach us🗣 was so amazing 👍🙄

Firstly I didn't play the video...I was founding for PW's new lecture on this topic...then I play the video ok this topic of another channel, but the topic was not clear to me...then I played ur video....and now regerting that why I shouldn't play this video in the beginning.... Crystal clear sir... Amazing explanation.. Someone has said the truth that old Is gold ❤️

Pw ka batch lia hai tab bhi yaha in white board lectures pe jitna smajh me aata hai utna to smartboard par dusre teachers se bhi nhi aata. Love you alakh sir ❤❤❤😂😂

You are really awesome..you are doing so much hard work just for us ...to make our future brighter ...really appreciated...so kind of you

Very interesting way of learning physics is by learning or understanding it from alakh pandey sir Thnks sir

Thank uh sir for this lecture ❤❤❤❤❤🎉🎉🎉

Today lecture was really fresh full 🥳

Imagine if sir open there coaching and 1million students comes to attend the class ,😍😍

38:36 "Jummbbbaaaa reee jumbaaaaaa" Literally very funny😂😂😂...

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Old is gold and our sir is precious than gold

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What a concept sir maja aa gya

Thank you sir 😊

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The only channel where we get to study with enjoyment and songs.😄 By the way thank u sir for helping us in making our studies easier😊

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48:22 ka solution 5.8 x 10^4 -1.5 x 10^3 =5.8 x 10^4 - 0.15 x 10^4 =10^4(5.8-1.5) =5.6 x 10^4

its not even 1 min but it has 100 like power of physics wallah

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Thank you sir you are the best.

This lecture was very helpful for me thanx sir🙏

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Thanks sir for great lacture

Your way of teaching is very Nice sir ❤❤

इन चलती फिरती आंखों से आजान देखी है अल्लाह तो नहीं देखा पर मैंने Physicswallah देखा है । Hats off to you sir ! Waiting eagerly for your app !

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these lectures are better than new lecture

This is newbie from grade 11 in the clg this topic was messed up thank you sir for making the concept clear !✨

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You should say welcome at last of each session because we are here to say thank you sir🙏

It's 2023 still these videos are helping me a lot. thank you very much sir ☺️

Thank you chacha ji, bohot bohot abhaar apka🙏🙏

Sir you are great ❤️ Apke jase teacher syad hi is world me koi hoga ❤️

Sir you know all the doubts of student And students don't need to question any doubt because you had cleared it all🙏🙏🙏🙏

Wa kya padaya yaar ek dam sai physics ko love hogaya❤️❤❤

Thank you sir 👍🏻

Sir you are the icon for the ones who does not afford an expensive education 👍❤️❤️ and thanks for being on online platform KZfaq 🙏

34:30 "Even thi yisliye jane diya odd hota toh ek badha dete". This was epic😂

Sir....I just love ur songs that u sing more than anything 🌟

49:35 The correct answer is in non decimal terms because we are substracting 1500 from 58000 = 56500 or 57×10³ or 6×10⁴.