Target 69th BPSC | PYQ Series | Science Ep 3 | Drishti PCS

Get ready to embark on a thrilling adventure through the vast treasure trove of Previous Years' Questions (PYQs) from Bihar Public Service Commission (BPSC) Preliminary Exams. 🏛️
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𝐃𝐨𝐰𝐧𝐥𝐨𝐚𝐝 𝐃𝐫𝐢𝐬𝐡𝐭𝐢 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐀𝐩𝐩 𝐧𝐨𝐰 :
bit.ly/3xs0O6b
=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵
𝐎𝐧𝐥𝐢𝐧𝐞 𝐅𝐨𝐮𝐧𝐝𝐚𝐭𝐢𝐨𝐧 𝐂𝐨𝐮𝐫𝐬𝐞 (𝐏𝐫𝐞𝐥𝐢𝐦𝐬 + 𝐌𝐚𝐢𝐧𝐬) 𝐏𝐞𝐧𝐝𝐫𝐢𝐯𝐞 𝐌𝐨𝐝𝐞:
👉 For 𝐟𝐞𝐞, 𝐀𝐝𝐦𝐢𝐬𝐬𝐢𝐨𝐧 and 𝐨𝐭𝐡𝐞𝐫 𝐝𝐞𝐭𝐚𝐢𝐥𝐬 of this course download the 𝐃𝐫𝐢𝐬𝐡𝐭𝐢 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐀𝐩𝐩 from this link: bit.ly/3bqTzjH
👉 To know the 𝐝𝐞𝐭𝐚𝐢𝐥𝐬 𝐨𝐫 𝐭𝐨 𝐫𝐞𝐠𝐢𝐬𝐭𝐞𝐫 through our website click on this link: bit.ly/2JF1cJx
👉 𝐓𝐨 𝐠𝐞𝐭 𝐭𝐡𝐞 𝐝𝐞𝐭𝐚𝐢𝐥𝐬 about this 𝐖𝐡𝐚𝐭𝐬𝐀𝐩𝐩 𝐨𝐫 𝐒𝐌𝐒 "𝐆𝐒" on this number: 𝟗𝟑𝟏𝟏𝟒𝟎𝟔𝟒𝟒𝟐
=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵
𝐏𝐞𝐧𝐝𝐫𝐢𝐯𝐞 𝐂𝐨𝐮𝐫𝐬𝐞𝐬 (𝐇𝐢𝐧𝐝𝐢 𝐋𝐢𝐭𝐞𝐫𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐈𝐀𝐒 𝐏𝐫𝐞𝐥𝐢𝐦𝐬):
👉 For 𝐟𝐞𝐞, 𝐀𝐝𝐦𝐢𝐬𝐬𝐢𝐨𝐧 and 𝐨𝐭𝐡𝐞𝐫 𝐝𝐞𝐭𝐚𝐢𝐥𝐬 of 𝐏𝐞𝐧𝐝𝐫𝐢𝐯𝐞 𝐂𝐨𝐮𝐫𝐬𝐞 (Hindi Literature and IAS Prelims): bit.ly/2vGNj72
👉 𝐃𝐞𝐦𝐨 𝐜𝐥𝐚𝐬𝐬 playlist- bit.ly/2qyY1cW
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👉 𝐏𝐫𝐞𝐥𝐢𝐦𝐬 𝐏𝐫𝐚𝐜𝐭𝐢𝐜𝐞 𝐒𝐞𝐫𝐢𝐞𝐬 की पुस्तकें (संपूर्ण सेट एक साथ) खरीदने के लिये निम्नलिखित लिंक्स का प्रयोग करें:
𝐃𝐫𝐢𝐬𝐡𝐭𝐢 𝐖𝐞𝐛𝐬𝐢𝐭𝐞: bit.ly/30LLMbt
𝐀𝐦𝐚𝐳𝐨𝐧: amzn.to/2VqvH8S
𝐅𝐥𝐢𝐩𝐤𝐚𝐫𝐭: bit.ly/3odDQtv
=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵
👉 𝐐𝐮𝐢𝐜𝐤 𝐁𝐨𝐨𝐤 𝐒𝐞𝐫𝐢𝐞𝐬 की पुस्तकें (संपूर्ण सेट एक साथ) खरीदने के लिये निम्नलिखित लिंक्स का प्रयोग करें:
𝐃𝐫𝐢𝐬𝐡𝐭𝐢 𝐖𝐞𝐛𝐬𝐢𝐭𝐞: bit.ly/36u5qwD
𝐀𝐦𝐚𝐳𝐨𝐧: amzn.to/3lvMjGX
𝐅𝐥𝐢𝐩𝐤𝐚𝐫𝐭: bit.ly/37lO3NS
=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵
👉 𝐌𝐚𝐢𝐧𝐬 𝐂𝐚𝐩𝐬𝐮𝐥𝐞 𝐒𝐞𝐫𝐢𝐞𝐬 की पुस्तकें खरीदने के लिये निम्नलिखित लिंक्स का प्रयोग करें:
𝐃𝐫𝐢𝐬𝐡𝐭𝐢 𝐖𝐞𝐛𝐬𝐢𝐭𝐞: bit.ly/2L0efWP
𝐀𝐦𝐚𝐳𝐨𝐧: amzn.to/2HYgpF9
=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵
👉 𝐑𝐀𝐒 𝐒𝐞𝐫𝐢𝐞𝐬 की पुस्तकें खरीदने के लिये निम्नलिखित लिंक्स का प्रयोग करें:
𝐃𝐫𝐢𝐬𝐡𝐭𝐢 𝐖𝐞𝐛𝐬𝐢𝐭𝐞: bit.ly/35hpX6T
𝐅𝐥𝐢𝐩𝐤𝐚𝐫𝐭: bit.ly/380zfWu
𝐀𝐦𝐚𝐳𝐨𝐧: amzn.to/3bbxw2L
=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵
𝐅𝐨𝐫 𝐕𝐢𝐝𝐞𝐨 𝐮𝐩𝐝𝐚𝐭𝐞𝐬 𝐟𝐨𝐥𝐥𝐨𝐰 𝐮𝐬 𝐨𝐧 :
👉 Facebook : / drishtiiasyo. .
👉 Twitter : / drishtivideos
👉 Instagram : / drishtiias
👉 Telegram : t.me/drishtiia...
=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵
👉 𝐎𝐮𝐫 𝐑𝐞𝐠𝐮𝐥𝐚𝐫 𝐘𝐨𝐮𝐓𝐮𝐛𝐞 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐬' 𝐏𝐥𝐚𝐲𝐥𝐢𝐬𝐭𝐬:
1. Videos by Dr. Vikas Divyakriti: bit.ly/2TF34TZ To
2. Concept Talk- By Dr. Vikas Divyakirti: goo.gl/xNVMrm
3. Current News Bulletin: goo.gl/TRiKpS
4. In News: bit.ly/2VsYdqt
5. Today's GK: goo.gl/qYva9T
6. To The Point- Special: bit.ly/2UwSbpv
7. Audio Article: goo.gl/MV1BRW
8. UPSC PT Prelims Practice Quiz: bit.ly/3fWGwch
9. National/International Organisations: goo.gl/iXHNNM
10. Sarkari Yojanayen: goo.gl/92Xdef
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👉 डेली न्यूज़ एनालिसिस: goo.gl/aaLjjK
👉 डेली करेंट अफेयर्स टेस्ट: goo.gl/PFwJ21
👉 प्रैक्टिस टेस्ट: goo.gl/nKY3fu
👉 लोकसभा और राज्यसभा टीवी डिबेट: goo.gl/hmtXgv
👉 मैप के माध्यम से अध्ययन: goo.gl/4TsnpC
👉 डेली मेंस आंसर राइटिंग प्रैक्टिस: goo.gl/3i5NXD

[@ajeet_pal6889]

16:49 आवृति और तरंगद्धैर्य एक दूसरे के व्युत्क्रमानूपाति होते है ।
19:24 ध्वनि तरंग अनुदैर्ध्य होती है ।

[@muskanmishra1194]

B Longitudinal

[@jaiho3841]

Sound langitudinal wave hai

[@pushpakumarigupta815]

Anudhery

[@anamikakumari3886]

b anudairya

[@BipinKumar-no2nt]

B

[@himanshualrounder5161]

Ma'am biology or chemistry ka bhi series starts kr do ab bahut Kam time bacha hai...

[@mohdkhalid4871]

Thank🙏💕 you✨ maam 💓 drishti ias team 💓🌸💓🌸💓🌸💓🌸💓🌸

[@lalooprasadyadav289]

Thank you so much mam
Bahut achha analysis ❤❤❤❤

[@swatisinghrajpoot]

Very nice video ma'am thank you ❤

[@anjali_bharadwaj9]

Thank you mam🎉🙏

[@radhikakumariupscaspirant3446]

👍👍👍👍

[@neetujadhav1340]

Right option B 😃

[@rajnikhatrirajnikhatri6056]

🙏🙏🙏

[@tapendrasingh7633]

Like q3

[@krantigoutam4225]

Longitudinal

[@fafaizyipslvr4811]

Ek v question wrong nhi huwa mam salute ❤

[@kumarvishal2200]

b) Longitudinal

[@awdheshsingh5442]

Sound is a longitudinal waves.

[@Dreamer_story]

Thank you so much drishti members ❤😊❤😊❤❤❤❤❤❤❤

[@khushis.rajput5130]

New question bhi add kigiye sir

[@pratiksha9213]

Bahut saral or Sundar shabdo me explain Kiya ma'am aapne😊
As always drishti team is always best❤🎉

[@pky8814]

कासमिक किरण आवेशित और अनावेशित दोनों हैं

[@nishaprajapati235]

Thank you very much respected mam and all of you
Team Drishti IAS
🙏🙏🙏🙏🙏

[@abhay445]

Longitudinal waves 🙏🙏🙏🙏🙏

[@himanshualrounder5161]

Option:-b
Ma'am question ki lable increase kigiye....

[@SandeepKumar-re2mp]

लगता हैं इसबार खाली pyq hi पूछेगा😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂

[@himanshualrounder5161]

Ma'am explain bilingual mentioned v kr do...

[@shivratankannaujiya3330]

Option B sahi hai maim

[@Noaim8935]

Q5. ka (e) hoga na more than one of the above?

[@tapendrasingh7633]

Lot of wrong answer

[@subhampathak4596]

2 b

[@rajkaran6858]

Bbb

[@rajkaran6858]

❤❤❤❤😂

[@rajkaran6858]

Bbbbbb

[@yuvrajkumarsingh2228]

B

[@yuvrajkumarsingh2228]

Longitudinal

[@rajeevchandra9572]

Longitudinal

[@Astroapply777]

B

[@MdIrfan-yt5zt]

B