Скачать или смотреть BPSC | BPSC Prelims Science | Sound | ध्वनि | Science by Dr Sajid Ali Sir

BPSC | BPSC Prelims Science | Sound | ध्वनि | Science by Dr Sajid Ali Sir #bpsc #science #bpsc2025 #scienceexperiments

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In this important Physics (General Science) session, Dr. Sajid Ali Sir explains the complete chapter on Sound (ध्वनि) in an easy and exam-oriented way. This topic is repeatedly asked in BPSC Prelims, BPSC TRE, SSC, Railway, Defence, and all major competitive exams.

In this class, you will understand:
✔️ What is Sound? (Definition + Nature)
✔️ Sound is a mechanical wave
✔️ Longitudinal & transverse waves
✔️ Frequency, amplitude, time period
✔️ Speed of sound in solid, liquid, gas
✔️ Audible, ultrasonic & infrasonic waves
✔️ Echo, reverberation, SONAR
✔️ Human ear – working mechanism
✔️ Noise vs music
✔️ BPSC expected MCQs from Sound
✔️ Previous year General Science questions

This class makes your Physics basics crystal clear, helping you score full marks in the Science section.

📘 Topics Covered:

• Properties of sound
• Medium of propagation
• Reflection & absorption of sound
• Applications of sound in technology
• Sound pollution
• Numerical-based concepts
• BPSC-level MCQs
• PYQ trend analysis

🎯 Target Exams:

✔️ 72nd BPSC Prelims
✔️ BPSC TRE 4
✔️ BSSC / BPSSC
✔️ SSC CGL / CHSL / GD
✔️ Railway NTPC / Group-D
✔️ Defence Exams (NDA/CDS/CAPF)
✔️ CTET/STET (Science basics)
✔️ All exams with GS Science portion

⭐ Why This Class Is Important?

🔹 “Sound / ध्वनि” is a high-repetition topic in GS
🔹 Very easy & scoring for BPSC Prelims
🔹 Scientific concepts explained in simple language
🔹 Includes important MCQs + previous year questions
🔹 Taught by Dr. Sajid Ali Sir, expert Science educator

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🔥 Hashtags:

#bpsc #bpscprelims #science #sound #ध्वनि #gkgs #sajidsir #bpsctre4 #biharteacher #ssc #railwayexam #theofficersacademy
#bpsc #bpscprelims #science

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