NCERT Class 11 Physics | Oscillations Ex 14.1 | Periodic vs SHM Explained Clearly | JEE NEET
Автор: Let's love physics
Загружено: 2026-01-06
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In this video, we solve NCERT Class 11 Physics Chapter 14 (Oscillations) — Exercise 14.1 with deep conceptual clarity, exactly as required for JEE & NEET.
This is NOT a rote solution. Each option is analysed using the correct definition of periodic motion and simple harmonic motion, with real physical reasoning and exam-focused insights.
📘 Question Covered (NCERT Ex 14.1):
• Swimmer crossing river and returning
• Freely suspended bar magnet
• Hydrogen molecule rotating about its centre of mass
• Arrow released from a bow
We also classify motions as:
✔ Periodic
✔ Simple Harmonic Motion (SHM)
✔ Periodic but NOT SHM
📌 KEY CONCEPTS EMPHASISED
━━━━━━━━━━━━━━
✔ Motion must repeat automatically
✔ Fixed time period is essential
✔ Restoring force/torque decides SHM
✔ Uniform circular motion is periodic, not SHM
✔ One-time motions are never periodic
📚 Source: NCERT Physics Class 11 — Chapter 14 (Oscillations). :contentReference[oaicite:1]{index=1}
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