Units and Measurements 05 || Significant Figures JEE/NEET

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  • Опубліковано 18 гру 2024

КОМЕНТАРІ • 15 тис.

  • @PhysicsWallah
    @PhysicsWallah  4 роки тому +2656

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    ALPHA Class 11 Chapter 2 : Units and Measurement 01 - Introduction to Dimensions JEE/NEET
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    Units and Measurement 02 || Dimensional Analysis : Principle of Homogeneity of Dimensions - JEE/NEET
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    Units and Measurement 03 || Dimensional Analysis : Deriving the Formula of any Physical Quantity
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    Units and Measurement 04 || DPP -1,2 & 3 Solving || Best Questions on Dimensional Analysis JEE/NEET
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    Units and Measurements 05 || Significant Figures JEE/NEET
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    Units and Measurements 06 || Error Analysis - Part 1 JEE/NEET
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    Units and Measurements 07 || DPP - 5 Solving || Error Analysis - Part 2 : Best Questions JEE/NEET
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    Units and Measurements 08 || Vernier Calipers - Best Concepts with Basic to Advance Questions
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    Units and Measurements 09 || Screw Gauge Or Micrometer Screw Gauge - Best Concepts with Numericals
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    • @vanshsharma4488
      @vanshsharma4488 4 роки тому +34

      Alakh sir is best

    • @syedasanobar3693
      @syedasanobar3693 4 роки тому +23

      Tysm sir.🥰🥰... Ky neet mn phy k liye DC Pandey Shi ha ya r bhi books refer Kru ... Pls kindly help me sir...

    • @Aryanyadav-tf8eu
      @Aryanyadav-tf8eu 4 роки тому +17

      Sir class 12 please

    • @medicoc.m.6216
      @medicoc.m.6216 4 роки тому +18

      Sir please complete half MECHANICS before july.... Please sir

    • @s_h_u_a_n
      @s_h_u_a_n 4 роки тому +20

      Sir, kindly start class 12th!!🙏🙏

  • @its_rohitag
    @its_rohitag 4 роки тому +3316

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

    • @atcraftcorner5521
      @atcraftcorner5521 4 роки тому +34

      Rohit Sir app vhi acche hoon

    • @Lucifer-pj8vc
      @Lucifer-pj8vc 4 роки тому +36

      Masaallah physics wallah

    • @tahurakhan667
      @tahurakhan667 4 роки тому +8

      @@collectiveshow4370 who

    • @aamiya.9771
      @aamiya.9771 4 роки тому +7

      @@edfox7778 0 ए जननोइन्नूनॉन्न 0

    • @aamiya.9771
      @aamiya.9771 4 роки тому +1

      @@collectiveshow4370 00 0m00

  • @shikshadubey07
    @shikshadubey07 4 роки тому +3275

    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

  • @shashibalarai1146
    @shashibalarai1146 Рік тому +879

    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) .....
    😊

  • @arishsohail2290
    @arishsohail2290 8 місяців тому +354

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

  • @Jade-cj7zc
    @Jade-cj7zc 8 місяців тому +56

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

  • @deveshchaturvedi9241
    @deveshchaturvedi9241 4 роки тому +46

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

  • @stratasphorte
    @stratasphorte Рік тому +408

    2023-2024 still these lectures are fire 💯

    • @odbikashyt6951
      @odbikashyt6951 Рік тому +3

      I think no 💯

    • @Onlyiitian
      @Onlyiitian Рік тому

      Hai bro , completed 1k subscriber

    • @HACKINGCITY2426
      @HACKINGCITY2426 Рік тому +1

      Sahi m

    • @UCHIHA_ITACHI69
      @UCHIHA_ITACHI69 Рік тому +1

      Can you tell me why in 1000 there are only 1sf but in 1000.0 there are more?

    • @stratasphorte
      @stratasphorte Рік тому

      @@UCHIHA_ITACHI69 the zeroes after a point r significant.. but the trailing zeroes in natural no.s aren't significant

  • @himanshusingh8420
    @himanshusingh8420 2 роки тому +149

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

    • @AnjaliKumari-sn2ce
      @AnjaliKumari-sn2ce 2 роки тому +2

      U r amezing sir

    • @karishmayadav6892
      @karishmayadav6892 2 роки тому

      I agree

    • @AlphaInstincts
      @AlphaInstincts 2 роки тому +2

      @Diamond 99 Bro you have mistaken in calculating it( 58000- 1500 = 56500), this is the right calculation. So the answer is 56.5 × 10^2

  • @hrithikdas8681
    @hrithikdas8681 3 роки тому +698

    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 !!!!

    • @ArtworkShalini
      @ArtworkShalini 3 роки тому +9

      And I believe that you'll be in Arjuna batch next week...?

    • @hrithikdas8681
      @hrithikdas8681 3 роки тому +13

      @@ArtworkShalini no I am enrolled in an offline coaching for JEE . Came here to visit sir because till 10th i was learning from this genius.

    • @abcdabcd7993
      @abcdabcd7993 3 роки тому +5

      Alakh sir's teaching is best♥️ but I have a doubt sir @53:01 142.06×0.23=32.6728 since we had to round it off to 2 significant figures we cannot write it as 33? Because 33 is a pure no. And 33 has infinite significant figures??? Please tell me if I am wrong ??

    • @hrithikdas8681
      @hrithikdas8681 3 роки тому +4

      @@abcdabcd7993 probably u should write the answer as 33. then it will have 2 sf

    • @abcdabcd7993
      @abcdabcd7993 3 роки тому +2

      @@hrithikdas8681 no dear 33. Means 33.000 we can write infinitely many zeroes??

  • @otodcreation8735
    @otodcreation8735 2 роки тому +2334

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

    • @abhilash3310
      @abhilash3310 2 роки тому +8

      Yos

    • @akshat9371
      @akshat9371 2 роки тому +18

      Nah not agree sir ka teaching ka tarika constant hae bhai change nahi hoga

    • @zenitsu3800
      @zenitsu3800 2 роки тому +39

      @@akshat9371 are vo nye teachers ke lectures ki baat kr rha h

    • @sabakhan5692
      @sabakhan5692 2 роки тому +1

      Yes

    • @rajshree746
      @rajshree746 2 роки тому +2

      Right

  • @mh_uvdt_008
    @mh_uvdt_008 9 місяців тому +618

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

  • @anuradhamudgal56
    @anuradhamudgal56 Рік тому +1322

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

  • @Harsh_Deswal
    @Harsh_Deswal 3 роки тому +209

    Answer of question on 49:36
    5.8×10⁴ - 1.5×10³
    =5.8×10⁴-0.15×10⁴
    =10⁴(5.8-0.15)
    =5.65×10⁴. (There is 0 after 5)
    =5.6×10⁴

    • @Harsh_Deswal
      @Harsh_Deswal 3 роки тому +6

      @Lalita Sharma shi to he

    • @Bebojee
      @Bebojee 3 роки тому +3

      Is answer is correct

    • @maroof8990
      @maroof8990 3 роки тому +5

      @@Mayank-sm3di bhai kon se school se padha hai. Calculation seekh jaake. 5.65 is correct

    • @Mayank-sm3di
      @Mayank-sm3di 3 роки тому +3

      @@maroof8990 ha right...

    • @disha3028
      @disha3028 3 роки тому +3

      Ans। is 565000

  • @ISHANTBAGHEL10
    @ISHANTBAGHEL10 4 місяці тому +12

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

  • @abutaher5632
    @abutaher5632 2 роки тому +519

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

    • @vaishnaviphad2799
      @vaishnaviphad2799 2 роки тому +6

      True....old is always gold.....watching this video after 2 yrs still it's the best one I ever saw✌🤗

    • @vritrakanha
      @vritrakanha 2 роки тому +2

      Wesse, bruhh... Should we Get the Physics wallah Course ya... UA-cam is best???

    • @abutaher5632
      @abutaher5632 2 роки тому

      @@vritrakanha bro , I recommend PW course le lo
      Best hoga aagar apne shi mehanat Kiya too

    • @anshu6529
      @anshu6529 Рік тому

      @@abutaher5632 achaaajii

    • @atharvrawal5666
      @atharvrawal5666 Рік тому

      crystal meth

  • @sanjaymishra9013
    @sanjaymishra9013 4 роки тому +51

    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

    • @sumbulrizvi7801
      @sumbulrizvi7801 4 роки тому +5

      Aapne answer shi diya h mgr third step me bracket ke ander 0.15 ki jagah 1.5 likha h

    • @ROUNAKKUUMAR
      @ROUNAKKUUMAR 4 роки тому

      Answer me (-) nahi lagega kya?

    • @thesouravvv
      @thesouravvv 10 місяців тому

      ​@@sumbulrizvi7801 Arey Bhai wo blunder nhin hai wo ek number ke peeche decimal lagaaya hai taaki 10 ki power 3 se 4 hojaaye

    • @Tubutaimur143
      @Tubutaimur143 8 місяців тому +1

      ​@@thesouravvv jb 0.15 likha tabhi 10 ki power 4 huvi dear n answer is 4.75 I,e 4.7 by rounding of

  • @maheshmahto2842
    @maheshmahto2842 4 роки тому +319

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

  • @riderpankaj7073
    @riderpankaj7073 7 місяців тому +11

    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 ❤❤

  • @Ambivertkhushiii
    @Ambivertkhushiii 3 роки тому +24

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

  • @MukeshKumar-li9uj
    @MukeshKumar-li9uj 4 роки тому +412

    The answer of addition And subtraction is:-
    5.8*10^4 -1.5*10^3
    =5.8*10^4 -0. 15*10^4
    =10^4(5.8-0.15)
    =10^4(5.650)
    Rounding off to one decimal:-
    =5.6*10^4
    👉Hence solved😇

    • @yashvardhanojha7059
      @yashvardhanojha7059 4 роки тому +9

      Same here,no difference.

    • @nabarupghosh2880
      @nabarupghosh2880 4 роки тому +5

      correcto!

    • @gajanangajananbonde5743
      @gajanangajananbonde5743 4 роки тому +17

      Fantastic friend you make the powers same good logic👍🏼👍🏼

    • @priyanshusingh5849
      @priyanshusingh5849 4 роки тому +41

      bhai reply agar ham 10^3 common leke@- 10^3. (5.8*10-1.5)kare to
      @--10^3(58-1.5)
      @----10^3(56.5)
      @----56.5*10^3
      Ho sakta hai ki nahi agar nahi to galat kaha hai

    • @MukeshKumar-li9uj
      @MukeshKumar-li9uj 4 роки тому +13

      @@priyanshusingh5849 yes it is possible and we can do this question like this as well😇

  • @anubansal1270
    @anubansal1270 4 роки тому +519

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

  • @NoN-IITianShaurya
    @NoN-IITianShaurya 5 місяців тому +6

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

  • @adityapratap6909
    @adityapratap6909 3 роки тому +23

    "Chalo, bhot bdiya"
    Sir ye bolte hue bhot ache lgte ho aap 😀😀

  • @infinityedits26
    @infinityedits26 3 роки тому +403

    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

  • @THEASTRONERS
    @THEASTRONERS 4 роки тому +651

    PHYSICS WALLAH THE
    BEST CHANNEL
    BEST TEACHER
    BEST EXPLANATION
    BEST METHOD
    BEST STYLE
    if you agree then put a like

    • @suniltayde2131
      @suniltayde2131 4 роки тому +6

      Bichare ko jyada like nhi mila

    • @kaurramandhillon8829
      @kaurramandhillon8829 4 роки тому +2

      @@suniltayde2131 😁😁😅😅

    • @nimitjain8163
      @nimitjain8163 4 роки тому +5

      Kha ghusaata hai bhai itne like.. kitne paise milte hai inn likes ke

    • @THEASTRONERS
      @THEASTRONERS 4 роки тому +2

      @@nimitjain8163 nothing

    • @nimitjain8163
      @nimitjain8163 4 роки тому +2

      @@THEASTRONERS bhai agar kuch nhi milta tou kyo mangta hai likes... Bhut tuchchi harkat hoti hai yh advise de rha hu matt kiya kr

  • @MohdAlyass-yk9zc
    @MohdAlyass-yk9zc Рік тому +9

    Old lecture are batter than new lacture keep continue this series

  • @tabindawani6869
    @tabindawani6869 2 роки тому +345

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

    • @akshatgupta8787
      @akshatgupta8787 2 роки тому +2

      Yes bro❤️🙂

    • @Pawanicx
      @Pawanicx 2 роки тому +1

      Hello

    • @crezydhum..8755
      @crezydhum..8755 2 роки тому +2

      Please suggest me the book for 11 exept ncert for jee preparation please

    • @im.kRiStEn_424
      @im.kRiStEn_424 2 роки тому +3

      Guys listen.. in this SF topic if we get a question Round off to 2 SF:
      i) 4.056
      What will be the answer!?

    • @superstatics205
      @superstatics205 2 роки тому +10

      @@im.kRiStEn_424 4.1

  • @snehal6452
    @snehal6452 3 роки тому +94

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

  • @sweetuajitsinghpagal2029
    @sweetuajitsinghpagal2029 4 роки тому +41

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

  • @gurpreetSandhu-jg5ty
    @gurpreetSandhu-jg5ty Рік тому +11

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

  • @antuku25
    @antuku25 4 роки тому +349

    Who wants 3 MILLION Subscriber of physics wallah....
    He is very close ...

  • @sahildeepsingh6387
    @sahildeepsingh6387 4 роки тому +322

    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❤️

    • @hrsahana7533
      @hrsahana7533 4 роки тому +4

      Really I also agree to you 👍

    • @zomb11873
      @zomb11873 4 роки тому +9

      Yes our teachers want that we should cram the things they do not say that understand that topic just they teaches the topic in very boring way 😅😅 the way sir teaches us is great 👍🏼
      #wapgamerz #diybuildersims

    • @nextcrescentnights
      @nextcrescentnights 4 роки тому +2

      @@zomb11873 right

    • @MukulThapliyalfilms
      @MukulThapliyalfilms 4 роки тому +1

      ua-cam.com/video/lvVUnWut07M/v-deo.html

    • @techinnovative693
      @techinnovative693 2 роки тому

      right

  • @HarshKumar-jc8ci
    @HarshKumar-jc8ci 4 роки тому +151

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

  • @Axesanshudelwer-31or
    @Axesanshudelwer-31or 7 місяців тому +7

    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 ❤❤❤😂😂

  • @naushaduthmani1390
    @naushaduthmani1390 3 роки тому +264

    Q. 5.8×10^4 - 1.5×10^3
    =5.8×10^4 - 0.15×10^4
    =5.8-0.15 (10^4)
    =5.65 [round off]
    =5.6×10^4

  • @adityakangude1190
    @adityakangude1190 4 роки тому +326

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

  • @Roh0io
    @Roh0io 4 роки тому +35

    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!

  • @mamtatripathi1423
    @mamtatripathi1423 Рік тому +36

    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....

  • @ROUNAKKUUMAR
    @ROUNAKKUUMAR 4 роки тому +169

    5.8×10⁴ - 1.5×10³
    =5.8×10⁴ - 0.15×10⁴
    = 10⁴(5.8-0.15)
    =5.6×10⁴

  • @jkun.1918
    @jkun.1918 4 роки тому +50

    49:26
    ANS SOLUTION.
    5.8×10^4 - 1.5×10^3
    58000-1500=56500.
    It can also be written as 5.65×10^4.
    Ab 5.8 & 1.5 mai decimal places 1 hai tou ans mai bhee ek.
    Ab 5.65 rounded off to 1place after decimal. 5.650 piche 50 hai aur 5 ke piche even hai isliye jaisa hai waisa hee rahe ga.
    In short
    5.6×10^4(5=5 followed by 0,and 6 is even).

    • @armsf4297
      @armsf4297 4 роки тому +6

      Bhai pr
      Hm
      10^4 me he kyu answer la rhe hai
      10^3 me bhi to la skte hai.
      56500 aya tha
      To
      56.5 × 10^3
      Isme bhi to
      1 he decimal place hai

    • @ishivali...naturelover9306
      @ishivali...naturelover9306 4 роки тому +1

      Bhai u are right

    • @kumarayush5950
      @kumarayush5950 4 роки тому +2

      49:26 5.65 × 10^4 .... 5 ke pehle 6 tha isliye jaane diya odd hota tha barha deta... 5.6 × 10^4

    • @armsf4297
      @armsf4297 4 роки тому

      @@ishivali...naturelover9306 bhai dpp ka 10 sawal hogya ?

    • @armsf4297
      @armsf4297 4 роки тому

      @@kumarayush5950 hm
      Pr discussion 10^4 pe hai ke
      10^3 kyu nhi le

  • @kanhaiyasharma8005
    @kanhaiyasharma8005 4 роки тому +74

    Alakh pandey is the best teacher who ever feels it like it👇👇👇👇👇👇👇👇👇👇👇👇

  • @PalakRao-tz8yn
    @PalakRao-tz8yn Рік тому +7

    Noone can teach like him❤️

  • @sensei7961
    @sensei7961 4 роки тому +68

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

  • @ziyakumari328
    @ziyakumari328 4 роки тому +79

    North SOUTH East West PHYSICS Wallah is The Best 🤣💥👍👍👍👍👍👍👍👍👍

    • @BECEOPatelVishvR
      @BECEOPatelVishvR 4 роки тому +3

      Meri copy karke mere se jyada like😯

    • @pw3893
      @pw3893 4 роки тому

      Physics wallah is best but
      See Arun Govil Ji ka Gyan
      ua-cam.com/video/z5CoJCt_hrg/v-deo.html

  • @anilsharma4580
    @anilsharma4580 Рік тому +38

    49:33 sir the ans was 5.6×10⁴ thanks sir for making education affordable ♥️♥️♥️

  • @AdityaGhadage-wp4yo
    @AdityaGhadage-wp4yo Рік тому +9

    Students note that, at 52:22 the multiplication of 142.06 to 0.23 is 32.6738 (without rounded of least significant figure) not 32.6728

    • @different468
      @different468 8 місяців тому +1

      it doesn't matter after all...the answer would still remain 33

  • @Zishanthechotobai
    @Zishanthechotobai 4 роки тому +32

    I am a physics teacher in international schools including Malaysian, He is one of the best teacher in the world. Any time come Malaysia, 3 days free accomodation and food from my side.thanks

  • @staffgaminglights5235
    @staffgaminglights5235 4 роки тому +64

    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

    • @aimersfirst
      @aimersfirst 4 роки тому

      ua-cam.com/video/QSSogzlfkOo/v-deo.html

    • @pw3893
      @pw3893 4 роки тому

      See Arun Govil Ji ka Gyan
      ua-cam.com/video/z5CoJCt_hrg/v-deo.html

    • @staffgaminglights5235
      @staffgaminglights5235 4 роки тому

      @chotu yadav Bhai physics hi real life h

    • @Thecannibalfrombeyond
      @Thecannibalfrombeyond 4 роки тому

      @@staffgaminglights5235 no physics is just part of imagination, we can't understand reality, and yeah everything is lie. 🙂

  • @insane_me.27
    @insane_me.27 3 роки тому +16

    the Best channel to study physics 😀

  • @arsh_tweetz268
    @arsh_tweetz268 Рік тому +21

    Only one word to say MASTERPIECE

  • @pawanbhatta4053
    @pawanbhatta4053 3 роки тому +75

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

    • @sahil04925
      @sahil04925 3 роки тому +1

      But mujhe samajh nahi aya😅

    • @pawanbhatta4053
      @pawanbhatta4053 3 роки тому +1

      @@sahil04925 that was meme😒

    • @sahil04925
      @sahil04925 3 роки тому +1

      @@pawanbhatta4053 bhai padhne wala bacha hu naa...😂
      Chill bro..😉 irritate kyu ho gaya...?

    • @Arshdeepsingh-vn8by
      @Arshdeepsingh-vn8by 3 роки тому +2

      That was meme 😂😂😂😂👌👌👌

    • @pawanbhatta4053
      @pawanbhatta4053 3 роки тому +1

      @@sahil04925 I'm not irritated

  • @harshitasukhwal3940
    @harshitasukhwal3940 4 роки тому +178

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

  • @strangemarvel7887
    @strangemarvel7887 2 роки тому +18

    49:25 Ans: 5.6 x 10^4

  • @amanvishwakarma6219
    @amanvishwakarma6219 Рік тому +2

    Old is gold and our sir is precious than gold

  • @ganeshingle8809
    @ganeshingle8809 4 роки тому +31

    @PhysicsWallah
    laga dala to life jingalala 😄😄
    how many of you agree👇👇👍

  • @avinashkhanikar5531
    @avinashkhanikar5531 3 роки тому +13

    If every teacher could teach like physic wallah Sir student don't need any extra tution 😊😊

  • @pandamemesoriginal7018
    @pandamemesoriginal7018 4 роки тому +168

    34:28 😂😂😂
    Even tha isliye jane diya
    Odd hota to badha deta

  • @AryanLohan-alewa001
    @AryanLohan-alewa001 6 місяців тому +2

    Alakh Sir is the best teacher of world ❤❤❤❤❤❤

  • @contentking1117
    @contentking1117 2 роки тому +90

    5.8 × 10⁴ - 1.5 × 10³
    →5.8 × 10⁴ - 0.15 × 10⁴
    →(5.8 - 0.15) × 10⁴
    →5.65 × 10⁴
    [5.8 have 1 decimal place or least decimal place so round of to 1 decimal place]
    →5.6 × 10⁴ = Answer

    • @taniadutta9474
      @taniadutta9474 2 роки тому +1

      can u explain ki ye 10^4 kaise common hua? 10^3 ka ky

    • @satyamrawat2855
      @satyamrawat2855 2 роки тому +6

      5.7*10^4

    • @desilonda3982
      @desilonda3982 2 роки тому +1

      @@taniadutta9474 1.5 x 10^3 ko 0.15 x 10^4 convert karke 10^4
      Ko common leliya

    • @kashishw22
      @kashishw22 2 роки тому

      5.8 least decimal hai according to u par 1.5 bhi toh hai least decimal usko kyu ni liya fir . batao 😩 @content king

    • @prayashbaruah4713
      @prayashbaruah4713 2 роки тому +3

      @@desilonda3982 eek sath jee crack karenge!!

  • @drsoumenbiswas3463
    @drsoumenbiswas3463 4 роки тому +10

    49:25- machayenge
    49:45- firse machayenge😂😂😎😎
    ..............btw ..ans is-5.6×10^4..........kya mein macha Diya?????
    Love from bengal

  • @emontheshutterbug
    @emontheshutterbug 3 роки тому +140

    Best Physics Teacher of this Century ❤️

    • @analyticalmind7766
      @analyticalmind7766 2 роки тому

      Bhai eternity

    • @aaryaverulkar6281
      @aaryaverulkar6281 2 роки тому +3

      No ways 😂 humare lalit sir isse kahi jyada acha padhate

    • @ynx_madara4785
      @ynx_madara4785 2 роки тому

      @@aaryaverulkar6281 I don't think so 😒

    • @aaryaverulkar6281
      @aaryaverulkar6281 2 роки тому

      @@ynx_madara4785 so that's your problem bro😂humare liye toh humare lalit sir hi acche the ,achhe hai ,aur rahenge that's solve😏

    • @ynx_madara4785
      @ynx_madara4785 2 роки тому

      @@aaryaverulkar6281 ok I'll admit it 🛐🛐

  • @thv8972
    @thv8972 Рік тому +4

    Meh home work ans check karne comments pe aye hu..... Lekin yaha tho alakh sir ki tarif kar rahehey...... By the way mujhe be alakh sir ko thank you kehni hey....... Tq so much sir....

  • @rahilakhtar3579
    @rahilakhtar3579 4 роки тому +21

    I will say - sasta, sundar and tikau study sir . May god keep you safe for future generation ❤️🔥🔥

  • @slamtv6067
    @slamtv6067 4 роки тому +118

    49:31
    *Ans*
    *5.6× 10⁴*
    Session was very nice. 😊😊

    • @tanmayshukla2623
      @tanmayshukla2623 4 роки тому +25

      Mera to 4.3×10^3 aa raha hai

    • @prashantohal6208
      @prashantohal6208 4 роки тому +26

      @@tanmayshukla2623
      = 58000- 1500
      = 56500 into tenraise 4
      =5.6 in to tenraise to 4 .....(rounding off)

    • @hunnysharma.3097
      @hunnysharma.3097 4 роки тому +9

      First i added both with the decimal, answer was incorrect ,your answer made me to think again now i got it 😁😇

    • @slamtv6067
      @slamtv6067 4 роки тому +75

      @UCaQx7QXgB9zJR9mnRvYIA0A
      5.8 ×10⁴ - 1.5×10³
      =》5.8×10⁴ - 0.15×10⁴
      =》(5.8-0.15)×10⁴
      =》(5.65)×10⁴
      =》5.6×10⁴

    • @slamtv6067
      @slamtv6067 4 роки тому +23

      @UCaQx7QXgB9zJR9mnRvYIA0A
      5.8 ×10⁴ - 1.5×10³
      =》5.8×10⁴ - 0.15×10⁴
      =》(5.8-0.15)×10⁴
      =》(5.65)×10⁴
      =》5.6×10⁴

  • @kingRISHI
    @kingRISHI 4 роки тому +166

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

  • @rajinderSingh-wk3ks
    @rajinderSingh-wk3ks Рік тому +6

    Best lectures for jee 2025
    Hats off Alakh Sir

  • @shravu9007
    @shravu9007 3 роки тому +258

    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)

    • @adeshkumarverma6227
      @adeshkumarverma6227 3 роки тому +7

      Same here

    • @adeshkumarverma6227
      @adeshkumarverma6227 3 роки тому +5

      @@shravu9007 I will join tommorow surely . I couldn't joined yet because I have some issues. Have you joined?

    • @shravu9007
      @shravu9007 3 роки тому +3

      @@adeshkumarverma6227 yes

    • @Funplay69
      @Funplay69 3 роки тому +4

      op bro darec

    • @shravu9007
      @shravu9007 3 роки тому +2

      @@Funplay69 darec..?

  • @robertingersoll5289
    @robertingersoll5289 4 роки тому +102

    As a Professional Engineer, I often surf the web to see what sites to recommend to our young students.
    This guy is excellent - and technically correct. Most Hindi UA-cam videos are full of errors and bad information.
    Alakh Pandey is the exception. He is at the same level, or better, than Khan Academy here in the USA.

  • @tanyachaudhary1425
    @tanyachaudhary1425 2 роки тому +74

    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😊

  • @Whiebyeu4517
    @Whiebyeu4517 2 місяці тому +2

    Clg mai hu ek topic aaya tha errors and sf ka yehi video chla di full nostalgia😢 @31:30 full nostalgia yaar😢 yaad hai mujhe jb pehli baar yeh video dek rha tha tb hasa tha ispe aur ab rona aa rha hai ❤

  • @Anonymous-vn7co
    @Anonymous-vn7co 4 роки тому +19

    Very excited for " ham sabka beautiful sa app PHYSICS WALLAH "

  • @rohitashwaawasthi4080
    @rohitashwaawasthi4080 3 роки тому +11

    Besides a good physics teacher you are also a good singer 😉😁😉😊

  • @anjalimishra5910
    @anjalimishra5910 3 роки тому +22

    Helloooo bachonooooooooo
    Kya haal chaal
    Badiya ek dum
    Gives the energy at next level ❤🔥🔥🔥❤❤❤❤😁😁

  • @ShInIng_sTaR7512m
    @ShInIng_sTaR7512m Рік тому +38

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

  • @RiyaSingh-bp2lg
    @RiyaSingh-bp2lg 4 роки тому +111

    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 !

    • @mohitpatil7635
      @mohitpatil7635 4 роки тому +5

      Right bhai😘😘😘😘

    • @NishaSingh-px1bz
      @NishaSingh-px1bz 4 роки тому +4

      @@mohitpatil7635 Bhai nhi bahen

    • @pujashree2830
      @pujashree2830 4 роки тому +1

      Kya bat hai....

    • @gagansahu13.07
      @gagansahu13.07 4 роки тому +1

      😘😘

    • @laibasundus4235
      @laibasundus4235 4 роки тому +6

      @Riya sing ...sorry but we cant compare any one in any sense with Allah...beshak Alakh sir god gifted hain....he is great teacher ....huge respect for him ...cant show my gratitude with words ...but cant compare him with Allah the Almighty.. i hope u understand..

  • @kaustubhghawade3302
    @kaustubhghawade3302 3 роки тому +20

    54:44 hamre alakh sir ke class ki bell😍🤗

  • @ZAHEERAHMED-r1x
    @ZAHEERAHMED-r1x Рік тому +5

    these lectures are better than new lecture

    • @NTA.Nationaltestingagency
      @NTA.Nationaltestingagency Рік тому +1

      My brother cracked jee advanced with this lectures 😮 I have complete faith in this

  • @techwire02
    @techwire02 3 роки тому +19

    6:20 Beta kat Jta h apna
    Teacher ho to alakh bhaiya jaisa ❤️ 😂

  • @keshavbajpai9270
    @keshavbajpai9270 4 роки тому +222

    Who thinks alakh sir is the best teacher on UA-cam
    Hit like👍👍👍👇👇

    • @krishnatripathi3247
      @krishnatripathi3247 4 роки тому +1

      🙇🙇🙇🙇

    • @asheerwad_01
      @asheerwad_01 4 роки тому +3

      I think that Alakh Sir is more than that of the best teacher on UA-cam

    • @sandipkunjir81
      @sandipkunjir81 4 роки тому +5

      Likes kai bikari
      Alak sir ka dum pai likes lata hai🖕🖕

    • @ashwinikumar.
      @ashwinikumar. 4 роки тому +1

      @Priyanshu Ranjan sahi kah rahe ho bhai...

    • @satishsharma-ck8tn
      @satishsharma-ck8tn 4 роки тому +1

      @Priyanshu Ranjan nice reply bro
      He is thinking that we are fool 😂😜😉

  • @demolatin3194
    @demolatin3194 3 роки тому +79

    I am addicted with Alak Sirs singing.

  • @manjeetkoda-00
    @manjeetkoda-00 4 місяці тому +1

    Best video 📷 ever 👌🏻 on UA-cam for 2024-2025 ❤ students

  • @dharmendraraj3985
    @dharmendraraj3985 3 роки тому +18

    49:30
    5.8 ×10^4 - 1.5× 10^3
    = 5.8 × 10^4 - 0.15 × 10^4
    = 5.65 × 10^4
    =5.6 × 10^4 ans...

    • @RrcGamer11
      @RrcGamer11 3 роки тому +1

      Wrong answer baba

    • @RrcGamer11
      @RrcGamer11 3 роки тому +1

      5.8x10^4 - 1.5x10^3
      First = ten ki power same karte hai
      Second = 5.8-.15
      And some of subtract 5.95
      Third = kisbhi number ke baad odd number hoga 1+ hoga
      Answer = 6.0x10^4

    • @prajnahegde9053
      @prajnahegde9053 2 роки тому

      @@RrcGamer11actually your ans is wrong
      5.8 x 10^4 - 0.15 x 10^4 = 5.6 x 10^4
      Because, 5.8 - 0.15 is 5.65
      You did wrong

    • @RrcGamer11
      @RrcGamer11 2 роки тому

      @@prajnahegde9053 right answer

  • @abhaypage9611
    @abhaypage9611 4 роки тому +25

    0:01 the effect with hello baccho is astounding.....

  • @sudhanshuranjan6341
    @sudhanshuranjan6341 4 роки тому +152

    Sir you are like a hero during the time of studies (you actually save us from getting messed with the book😁)

    • @zomb11873
      @zomb11873 4 роки тому +3

      While listening to his lecture i remember the song of GTA San Andres which used to be play on getting respect. Great respect to sir #wapgamerz
      #diybuildersims
      MISSSION PASSED
      +RESPECT
      😅😝😝😝👍🏼👍🏼

    • @MukulThapliyalfilms
      @MukulThapliyalfilms 4 роки тому

      ua-cam.com/video/lvVUnWut07M/v-deo.html

    • @anonymousyt2219
      @anonymousyt2219 Рік тому

      ​@@zomb11873meaning?

  • @anamikaraj5501
    @anamikaraj5501 Рік тому +12

    These lectures are always cool

  • @chandrabhanyadav2865
    @chandrabhanyadav2865 4 роки тому +21

    This is our only our lovely💕💕 channel PHYSICS WALLAH

  • @saloni2536
    @saloni2536 4 роки тому +61

    Sir 🙇no one can teach like u !
    I respect u a lot sir .. THE BIGGEST THANKYOU .. 🙇💙

    • @MukulThapliyalfilms
      @MukulThapliyalfilms 4 роки тому

      ua-cam.com/video/lvVUnWut07M/v-deo.html

    • @kageyama5922
      @kageyama5922 4 роки тому

      @@MukulThapliyalfilms kya kehna chahte ho btw nice try aap bhi bohot acha padhate ho bas aur energy dalo maja aayega

    • @satishyadav5970
      @satishyadav5970 4 роки тому +1

      Yes

  • @RupinderKaur-fn6el
    @RupinderKaur-fn6el 4 роки тому +102

    36:12 like Nobita 😂😂😂😂
    Giaan : Nobita hum aaj ka match tumari wajeh se hare hai👊👊👊

  • @Sachingupta13.5
    @Sachingupta13.5 6 місяців тому +1

    Sir singing songs are the best and motivating everyday to me to work hard❤😊

  • @omkapoor7526
    @omkapoor7526 3 роки тому +10

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

  • @singamthirupathi8731
    @singamthirupathi8731 3 роки тому +58

    Answer for the question is 5.6×10^4
    5.8×10^4 - 1.5×10^3
    5.8×10^4 -0.15×10^4=5.65×10^4
    On rounding off 5.65×10^4
    We will get 5.6×10^4

  • @bhimashankarthore2179
    @bhimashankarthore2179 4 роки тому +52

    *Physics wallah*
    ❣️❣️

  • @Sun.shine6790
    @Sun.shine6790 4 місяці тому +2

    Wow sir you are a nice singer 👏🏻👏🏻

  • @ajayvirmoti5509
    @ajayvirmoti5509 4 роки тому +10

    Sir please droppers ko dhyan me rakh ke vdo banao please.🙏🏻
    Please sir Alpha class upcoming jee mains exam ko dhyam me rakh kar bano please sir.🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻❤️
    Sir physics ke liye to apse batter koi nahi. You are Great Sir.

  • @lovesickfics5059
    @lovesickfics5059 3 роки тому +1753

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

    • @donotdisturb6326
      @donotdisturb6326 3 роки тому +93

      This implies that you don't use earphones.

    • @lovesickfics5059
      @lovesickfics5059 3 роки тому +51

      @@donotdisturb6326 yeah on that day i didn't use coz one of it's side wasn't audible 😂...now I have got a new one.

    • @BigPPwhofckedyourmomWoW
      @BigPPwhofckedyourmomWoW 3 роки тому +22

      @@lovesickfics5059 bro kaha se liya abhi toh lockdown h 😭

    • @lovesickfics5059
      @lovesickfics5059 3 роки тому +42

      @@BigPPwhofckedyourmomWoW haa yaar kahi mil nhi rha tha, not even online fir mene TV khhola and....NAAPTOL KIYA KYA? intensified!!😂😂😂😂

    • @pranshukumar7934
      @pranshukumar7934 3 роки тому +14

      @@lovesickfics5059 😂

  • @theuc7716
    @theuc7716 4 роки тому +12

    Your answer is "5.6 ×10^4" Thanks a lot sir

  • @AarohiSingh-h2y
    @AarohiSingh-h2y Місяць тому

    Best video on you tube for unit dimension,there are so many videos but none can beat you ❤

  • @bhumikachauhan5266
    @bhumikachauhan5266 3 роки тому +11

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

  • @missriya806
    @missriya806 3 роки тому +163

    49.27 ans is 5.8 x 10^4 - 1.5 x 10^3 = 5.8 x 10^4 - 0.15 x 10^4 = 5.65 x 10^4..by rounding off we get 5.6 x 10^4