UPSC Prelims 2021 Paper Analysis I Science & Technology | Drishti IAS

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प्रिय विद्यार्थियों,

हम यूपीएससी प्रिलिम्स -2021 में पूछे गए प्रश्नों की उत्तर सहित व्याख्या की वीडियो सीरीज़ शुरू कर रहे हैं। इसमें प्रत्येक खंड का विश्लेषण उस विषय को पढ़ाने वाले शिक्षक करेंगे।

इस वीडियो में श्री सर्वेश तिवारी सर ने प्रारंभिक परीक्षा 2021 के प्रश्नपत्र-1 से विज्ञान एवं प्रौद्योगिकी खंड के प्रश्नों पर विस्तृत चर्चा की है।

=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵

𝐃𝐨𝐰𝐧𝐥𝐨𝐚𝐝 𝐃𝐫𝐢𝐬𝐡𝐭𝐢 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐀𝐩𝐩 𝐧𝐨𝐰 :

=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵

𝐎𝐧𝐥𝐢𝐧𝐞 𝐅𝐨𝐮𝐧𝐝𝐚𝐭𝐢𝐨𝐧 𝐂𝐨𝐮𝐫𝐬𝐞 (𝐏𝐫𝐞𝐥𝐢𝐦𝐬 + 𝐌𝐚𝐢𝐧𝐬) 𝐏𝐞𝐧𝐝𝐫𝐢𝐯𝐞 𝐌𝐨𝐝𝐞:

👉 𝐓𝐨 𝐠𝐞𝐭 𝐭𝐡𝐞 𝐝𝐞𝐭𝐚𝐢𝐥𝐬 about this 𝐖𝐡𝐚𝐭𝐬𝐀𝐩𝐩 𝐨𝐫 𝐒𝐌𝐒 "𝐆𝐒" on this number: 𝟗𝟑𝟏𝟏𝟒𝟎𝟔𝟒𝟒𝟐

=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵

𝐏𝐞𝐧𝐝𝐫𝐢𝐯𝐞 𝐂𝐨𝐮𝐫𝐬𝐞𝐬 (𝐇𝐢𝐧𝐝𝐢 𝐋𝐢𝐭𝐞𝐫𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐈𝐀𝐒 𝐏𝐫𝐞𝐥𝐢𝐦𝐬):

=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵

👉 𝐏𝐫𝐞𝐥𝐢𝐦𝐬 𝐏𝐫𝐚𝐜𝐭𝐢𝐜𝐞 𝐒𝐞𝐫𝐢𝐞𝐬 की पुस्तकें (संपूर्ण सेट एक साथ) खरीदने के लिये निम्नलिखित लिंक्स का प्रयोग करें:

=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵

👉 𝐐𝐮𝐢𝐜𝐤 𝐁𝐨𝐨𝐤 𝐒𝐞𝐫𝐢𝐞𝐬 की पुस्तकें (संपूर्ण सेट एक साथ) खरीदने के लिये निम्नलिखित लिंक्स का प्रयोग करें:

=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵

👉 𝐌𝐚𝐢𝐧𝐬 𝐂𝐚𝐩𝐬𝐮𝐥𝐞 𝐒𝐞𝐫𝐢𝐞𝐬 की पुस्तकें खरीदने के लिये निम्नलिखित लिंक्स का प्रयोग करें:

=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵

👉 𝐑𝐀𝐒 𝐒𝐞𝐫𝐢𝐞𝐬 की पुस्तकें खरीदने के लिये निम्नलिखित लिंक्स का प्रयोग करें:

=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵

𝐅𝐨𝐫 𝐕𝐢𝐝𝐞𝐨 𝐮𝐩𝐝𝐚𝐭𝐞𝐬 𝐟𝐨𝐥𝐥𝐨𝐰 𝐮𝐬 𝐨𝐧 :

=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵

👉 𝐎𝐮𝐫 𝐑𝐞𝐠𝐮𝐥𝐚𝐫 𝐘𝐨𝐮𝐓𝐮𝐛𝐞 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐬' 𝐏𝐥𝐚𝐲𝐥𝐢𝐬𝐭𝐬:

=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵

#PrelimsAnswerKey #Prelims2021 #PaperAnalysisScience&Technology

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*Respect Sarvesh sir 🙏🙏.. best teacher of Drishti IAS..*

Sona-Paswan-Sona

I have gone through the certain classes of drishti ias. These are too good. Specially, the way of teaching of the respected teachers.

SumitSingh-pwcm

Really... Sir.. Aap bahot hi achhe se explain krte h. Ye discussion class h but fir v pura concept clear ho ja rha h. Thank you so much Sir.. 🙏

shivangichhoti

Thanks drishti ias team 🎉🎉 updated student

Viral_short_reels-

Sir ka lajawab lectures hote h bhut acha lgta h sr ki class kar k

pinkisharma

sir ji aapke samjhane ka tarika bahot jada achha smajh aa gya h ...thank u so much

sapna

Thanks sir Aapne itni Achhi Tarah se samajaya jo ham book padhake bhi nahi samaj shakte

ranasohil

Sir I am a student of class 9th but I understood perfectly. I want to become an IAS officer Thank you sir ...

crazystudyplatform

I have so many video of drishti teacher ... he's for sure best 😍

ashupandey

Wow Sir, nice explain 😍 Thank you so much, I watched 1st video of your Sir 🙏

dharmdixit

You are looking so nice teaching sir ❤best teachers of drishti IAS

Ishwar_ff

Thank you for drishti IAS teem good afternoon sir 🙏🙏🙏🙏🙏🙏🙏

jyotimishra

Is my dear teacher
मै आपके आशीर्वाद से 2024 मे इस exam को पार कर जायेगे
I'm a student drishti ias
PD course bach 1 ka student hu
Love u sir

nrocky

Sarvesh sir is experienced teacher in drishti team

shyamsundar

जो पढ़ता है वही दुनिया को पढ़ाता है,
आज का किया मेहनत कल रंग लाता है.
मंदिर में जाकर भगवान नही मिलता,
बिना परिश्रम के ज्ञान नही मिलता…

localbusinesspromotionofficial

Bohat hi sunder so helpful thanku so much 🙏🙏🙏👍👌👌👌

reshmamore

True analysis..keep this approach for next years paper analysis sir..thanks 🙏🏻

JdBtech

Best teacher in science and technology
Love you sir

peerlessatul

Well explained by respected sir Best discussion thank you very much

amanmadhurkatiyar

Dear Respected sir, Your explanation really good and helpful

enjoyyourlifewithbestofluc

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