UPSC CSE 2021 | Science & Tech Part 1 Prelims Paper Analysis and Discussion

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  • Опубликовано: 1 дек 2024

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  • @pathfinderias
    @pathfinderias  3 года назад +5

    Link - mrkt.unacademy.com/upsc2021prelimsanalysis
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    Unacademy Combat every Sunday at 11:00 AM.

  • @शिवभक्त-थ3ण
    @शिवभक्त-थ3ण 3 года назад +2

    @68 how lid wait of pressure cooker will help in cooking food faster. It can help in normal utensils.. But not in pressure cooker as they are designed such.

  • @gautamchaudhary4098
    @gautamchaudhary4098 3 года назад +3

    For led light question , I think it can spread light in 360 degree. We have seen in lab led bulbs having half cylindercal shape.

    • @surabhiagrawal9214
      @surabhiagrawal9214 3 года назад

      LED filament bulbs spread light in 360 degrees. Let’s see what UPSC has to say

  • @Digital_Second_Loving_Radio
    @Digital_Second_Loving_Radio 3 года назад +5

    Mind blowing 😇 explanation.. Some questions were easy

  • @sforstudy2507
    @sforstudy2507 3 года назад +15

    Tough questions based of application, itna toh pakka hai jo teacher padha rha h, jo books and pdf notes provide horha h wo bilkul nahi arha h 2019 se, 2019 se news trend chl chuka h.. Statics ko khuub pdho fir uske applicable based question mcq lgao ( anyway koi utna hadd tak mcq krwata bhi nahi, sb short cut practice set books se copy paste and wikipedia krke hmse mehnat krwa ke hame khush kr deta h sb)
    Not only s and tech, polity me bhi dekhlo bhut question toh lgta h PSIR optional walo ko dhyan me rkh kr bnaya gya h ekdma sa philosophical and analytical based...
    Overall jo offline/ online coaching pdkhe unka hi facts ratta marega 2019 se phle ki tara, kaise bacha wala sawal ata tha syria, iraq and yeman ke koi specific city ke bare me ya ISIS Or kaunsi terrorist organization run hota h wha iss type puchta tha, ya fir medeterinian sea bowrder touches with, matlab ab waisa sawaal bilkl nhi arha h..... Khudka dimagh lgana hoga wo bhi static 100% ghol ke sharbat jaise pine k baad.....
    Tnx to all guys

    • @dogged_unexpected6664
      @dogged_unexpected6664 3 года назад +6

      Meine just kuch dinno pahle start kra hai preperation 2023 kay liye.... Thnx for your observation...

  • @gautamtiwaribsc.5414
    @gautamtiwaribsc.5414 3 года назад +2

    Mitochondria replacement theory can be done before the fertilization of eggs

    • @thesupremesupreme
      @thesupremesupreme 3 года назад

      @unknown user how can you replace mitochondria after fertilization zygote will be formed and cell division will start at 8 cell stage u inject it into human body and you can change in all cells na so how come a is right .

  • @Taufik4306-p5l
    @Taufik4306-p5l 3 года назад +2

    Awesome explanation

  • @amanvarman7514
    @amanvarman7514 3 года назад +1

    In question 73
    I think they are talking About ACE2 Receptor not about Enzyme
    Although the answer will still be D

  • @ghanshyamsingh899
    @ghanshyamsingh899 3 года назад +2

    Sir question number 68 me weight of the lid temperature badhane me kaise help kar sakta h ,baat to pressure cooker ki ho rhi h jiska lid hamesha pack hota hai.I doubt

  • @AKpatna218
    @AKpatna218 3 года назад +2

    *CORRECTION*-----68.c ---> temperature at which food is cooked hai , naa ki time at which food is cooked. Cooked Temperature to same hi hoga.... independent of temperature of flame.

  • @bshwetha2292
    @bshwetha2292 3 года назад

    In the light year question,
    Speed of light in universe / vacuum /air(c)is absolute ,not " (d)speed of light is always same".. So the statement in itself is wrong as speed of light varies according to medium, sequence is air>liquid>solid.

  • @sangitkumarmunda2881
    @sangitkumarmunda2881 2 года назад

    Thank you very much sir 🙏🏻

  • @viveksingh9142
    @viveksingh9142 3 года назад +6

    Sir in question no 68 , that is already pressure cooker.। So why the weight of lid depends while it is already packed.।।
    I mean if there is an open pot then the lid will responsible .।।
    Plzz explain sir.।। 🙏🙏

    • @mathhelp5823
      @mathhelp5823 3 года назад

      Exactly

    • @deena744
      @deena744 3 года назад +1

      Pressure by lid will get increase as it is proportional to force (weight)

    • @mathhelp5823
      @mathhelp5823 3 года назад

      But here it has been asked about pressure cooker which is not like an open pot covered with lid

    • @rainbow7164
      @rainbow7164 3 года назад

      Agreed

    • @sahilj9009
      @sahilj9009 3 года назад

      @@mathhelp5823 bhai its obvious that pressure cooker is covered with a lid, common sence lgani he, bss, simple everyday life question he..

  • @शिवभक्त-थ3ण
    @शिवभक्त-थ3ण 3 года назад

    @69 it is not asking natural medium but artifical or synthetic medium No by this lekin 'can' makes it (upsc baby) yes as living cell can be made artificially.ab Jo upsc ki marji use sahi kar de.

  • @Kajal-uh1wx
    @Kajal-uh1wx 3 года назад +4

    Questions no 68 pardon sir but the option is weight of the lid and not weight on the lid.. option speak about the lid's weight

    • @kangad4711
      @kangad4711 3 года назад +3

      Still is right, if weight of the lid of a pressure cooker is more it will be same as placing something heavy above the lid.

  • @mahimabhola2908
    @mahimabhola2908 3 года назад +2

    68 is ✌️

  • @nurture_your_hobby
    @nurture_your_hobby 3 года назад +1

    Sir, temperature of the flame will be same. Intensity can be changed. Please guide.

  • @seemamalik8774
    @seemamalik8774 3 года назад

    Wow 5 questions to right h or aage dekhte h

  • @bhanuaeit3695
    @bhanuaeit3695 3 года назад +1

    Sir mai physically disabled hu ...mere 85 plus aa ra hai first paper me ...mujhe thora doubt lg ra hai second paper me ....please mujhe instruct kr dijie sir ....koi relax hai second paper me for physically disabled

  • @simply_wow3593
    @simply_wow3593 3 года назад

    For pressure cooker question I think ans will be c

  • @vishalbhardwaj4221
    @vishalbhardwaj4221 3 года назад

    Thank you sir for the analysis.

  • @mukeshkrsingh1711
    @mukeshkrsingh1711 3 года назад

    SIR PLEASE ALL QUESTION KO KNOW WLEDGE KE BASIS PAR DEFINE KIJIYE. TRICK KE BASE PAR NAHI. KAB TAK TRICK KAM AA SAKTA HAI. DEPTH STUDY US QUESTION KE BARE ME FULL CONCEPT SAMJH ME AANA CHAHIYE

  • @SarveshKumar-oy4ng
    @SarveshKumar-oy4ng 3 года назад +1

    Sir geography portion explain
    Please.

  • @mohitmohansahoo1689
    @mohitmohansahoo1689 3 года назад

    Thank u sir

  • @ashutoshsingh1262
    @ashutoshsingh1262 3 года назад

    Copper smelting wale question ka answer kya hoga,
    Please reply if anyone knows.

  • @rajneetbharat
    @rajneetbharat 3 года назад

    Weight has no role. People keep weight just to close any vents.

  • @ShivamYadav-nl3eb
    @ShivamYadav-nl3eb 3 года назад

    76. (C)

  • @akshayjadhav9754
    @akshayjadhav9754 3 года назад

    Mere 7 question right nikle 5 Unattemp

  • @Sacchaharsh7
    @Sacchaharsh7 3 года назад +2

    Maza aa gya....

  • @railwaymywife
    @railwaymywife 3 года назад

    TMV can be synthesis!

  • @mukeshkrsingh1711
    @mukeshkrsingh1711 3 года назад

    Sir, Question ko sahi to aap kar de rahe hai lekin conceptual clarity nahi aa pa rahi hai aapke explanation se. Sir please detail concept par aap ek banye please

  • @poonampoonam4050
    @poonampoonam4050 3 года назад +2

    Sir this is not clear... We can't able to read these questions..

  • @अनकहीबातें-घ7ण
    @अनकहीबातें-घ7ण 3 года назад +3

    Tough

  • @JAMMUDIARIES-x3s
    @JAMMUDIARIES-x3s 3 года назад +1

    My soap had triclosan in it 😣

  • @gauravpatel7323
    @gauravpatel7323 3 года назад

    Hello Sir CAPF ki Highest post kya hai??

  • @indianview1404
    @indianview1404 3 года назад

    lid कुकर की सीटी या ढ़क्कन ?????

  • @mahimabhola2908
    @mahimabhola2908 3 года назад +1

    Easy questions 🥺

    • @priyanshyadava
      @priyanshyadava 3 года назад +1

      Ghar mai baith ke baaten jhadne se kuch ba hota didi , Wha baith jati to 20 questions na krpati

  • @Neha-ti6cn
    @Neha-ti6cn 3 года назад +1

    Easy questions

    • @Captainamerica56643h
      @Captainamerica56643h 3 года назад

      Ha top krogi tum

    • @Neha-ti6cn
      @Neha-ti6cn 3 года назад

      @@Captainamerica56643h inshallah
      Kaash tum b pdhlete to top krlete abdul🤘😁

  • @Travel-nr7uz
    @Travel-nr7uz 3 года назад

    👍👍👍

  • @kishankalsariya1574
    @kishankalsariya1574 3 года назад

    Srkit clin

  • @Littleangel1439
    @Littleangel1439 3 года назад

    Sir ..Sacchayi ye h ..Aap jo b expect krte h k ye to 100% ayega vo kabhi nhi aata .Is chakker me baccho ka time waste ho jta h apki video k bhrose baithe rehte hai

  • @harshit386
    @harshit386 3 года назад

    Bohot easy paper aaya tha 😀