Toughest Question of Errors in Measurement

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  • Опубліковано 18 лис 2024

КОМЕНТАРІ • 54

  • @UnacademyJEE
    @UnacademyJEE  Рік тому +1

    JEE PDFs : t.me/namochat
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  • @infinity106G
    @infinity106G Рік тому +2

    HOMEWORK ANSWER
    23
    BECAUSE error is very large so it should be calculated by difference of area without error and area with error
    Acurate answer will be 23.21%

  • @integrityineducation7597
    @integrityineducation7597 Рік тому +8

    Option (D) 23 •/• ans
    This question can't be explained by error trick so
    Sol- l=1 so initial area is A= 1
    We need to find final area to find ∆A
    As we see that length is increased by 11 percent so that
    Final l=1+11/100=111/100
    So final Area=( final length)2. (Square)
    Final area= 111×111/100×100.
    =12321/10000
    So ∆A= final area - initial area
    = 12321/10000-1
    =2321/10000
    = 0.2321
    ∆A/A ×100=0.2321/1. × 100
    = 23.21•/•
    Approx 23 •/•
    😊so its my ans thankyou

    • @trushdevani153
      @trushdevani153 Рік тому

      Are you sure ???
      Mera bhi yahi aaya h
      Pr sir ne sahi answer nhi bataya h

    • @integrityineducation7597
      @integrityineducation7597 Рік тому +1

      @@trushdevani153 pata nahi reply bhi nahi diye hai mujhe ese sahi lag raha hai

    • @trushdevani153
      @trushdevani153 Рік тому

      @@integrityineducation7597 muje bhi sahi lag raha h
      Pr confirmation na ho tb tak doubt rehta h

    • @UnacademyJEE
      @UnacademyJEE  Рік тому +1

      Love the Energy!🎯🎯

    • @integrityineducation7597
      @integrityineducation7597 Рік тому +1

      ​@@UnacademyJEEkya sir ye sahi hai ya galat please reply 😊😊

  • @ramuprsad-oi6qv
    @ramuprsad-oi6qv Рік тому +4

    Sir please define this question I can't understand that how it is so hard❤❤❤❤❤❤❤

  • @monikashaw266
    @monikashaw266 Рік тому +5

    Ans: 23%
    Explanation : L(measure) = L(true) + L(true)×11%
    Now, A(measure) = ( L measure)² = 111²/100² ×L(true) , now percentage error in A =111²/100²L(true)² - L( true)²/l(true)² ×100 = 23%

  • @none-vi5vu
    @none-vi5vu Рік тому +1

    Kha sir hame fasa nako koushis , A error se nahi hoga kyu ki 11% error is big error , hame grneral method se jana hoga

  • @rajdeeppaul7653
    @rajdeeppaul7653 Рік тому

    Ajj hi Sameer sir se iska derivation sikha and ajj hi adv ka question karliya maza aa gya
    And hw question ka ans is opt-c 22%

  • @monikashaw266
    @monikashaw266 Рік тому +1

    Ans: D) 23%

  • @AYUSHV602
    @AYUSHV602 Рік тому

    Bring daily three advance que of three subjects it will help us alot

  • @AshutoshKumar-sd6sn
    @AshutoshKumar-sd6sn Рік тому

    C option dA/A=2dL/L

  • @shubhiteamudaan
    @shubhiteamudaan Рік тому

    Thankyou for this amazing session,
    And thankyou for your support

  • @shikhaparida8768
    @shikhaparida8768 Рік тому

    23% by calculating change in area/actual area×100.

  • @ritika_m0211
    @ritika_m0211 Рік тому +1

    Thanks alot sir for this wonderful session ❤❤❤❤

  • @bhagyavardhan13
    @bhagyavardhan13 Рік тому

    I think the homework question was easy
    Ans (c) 22%
    Explanation : l = 1 , so delta l = 11% ,
    as A = l^2
    so, delta A/ A*100 = 2 (delta l/l *100)
    = 2(11%) = 22%
    I THINK ANSWER SAHI HOGA... I THOUGHT KUCH TO GADBAD HAI DAYA.. QUESTION ITNA EASY NAHI HO SAKTA. But, let's see if I get it correct or not.
    THANKS FOR THIS VIDEO SIR

    • @Nimit_RAphile
      @Nimit_RAphile Рік тому

      Ans is 23.21 perc nearly ans is d

    • @UnacademyJEE
      @UnacademyJEE  Рік тому

      23% is the right answer, try to solve again

  • @styfun24
    @styfun24 Рік тому +1

    ❤❤❤❤❤❤❤❤❤❤
    A=l²
    (Delta A)/A*100==2(delta l)/l*100
    Implies %error in A ====c)22%
    ❤❤❤❤❤❤❤❤❤❤❤
    Check please
    ❤❤❤❤❤❤❤❤❤❤❤❤

  • @anuragkanade2664
    @anuragkanade2664 Рік тому

    Sir like this video layo aur concept build krwayo ❤❤❤

    • @UnacademyJEE
      @UnacademyJEE  Рік тому +1

      Stay tuned for next Challenging Questions❤

  • @a.rahman8930
    @a.rahman8930 Рік тому +1

    baki sab toh thik hain but background mein music kyu chal rha tha 😅

  • @advarbindkumar5791
    @advarbindkumar5791 Рік тому

    Sir isme agar maximum area aur minimum area ko minus karke area se divide ➗ karke agar percentage error nikalenge to option se match nhi ho rha hai pls check

  • @farhan501
    @farhan501 Рік тому +1

    Sir I am from pw here i come for see your solution opp sir

  • @himanshukumar078
    @himanshukumar078 Рік тому

    22 % answer ho gaya sir 🙏🏼🙏🙏🙏

  • @ajal3025
    @ajal3025 Рік тому +1

    Sir but ye simple question tha

  • @amritaUSA
    @amritaUSA Рік тому +4

    Thanks a lot again for these sessions❤...Now am feeling very confident on Errors😄 which wasn't before🤧...That Q. was doable for me....Thank you once again mam & sir❤️😊
    Please bring toughest Q. of Fluid Mechanics🙏❤

  • @SKELETONBOYZ60
    @SKELETONBOYZ60 Рік тому

    22 % ❤❤❤

  • @Multiversedimension2025
    @Multiversedimension2025 Рік тому

    Sir it should be 21%

  • @shivnathsurnar1035
    @shivnathsurnar1035 Місяць тому

    23.21% blunder

  • @certainsomeone_ds1649
    @certainsomeone_ds1649 Рік тому

    the question i asked in dcs XD

  • @integrityineducation7597
    @integrityineducation7597 Рік тому +1

    Sir ye to bahut easy tha😅😅