“Magnification Se Focal Length 😱 | f = ma/(1+m)² | Ray Optics”
Автор: Pksir
Загружено: 2026-02-09
Просмотров: 7
Описание:
Is video me hum Class 12 Ray Optics ka MOST IMPORTANT proof question solve kar rahe hain 😱
👉 Convex lens ke case me image screen par kab banegi?
👉 Minimum distance a = 4f ka proof
👉 Magnification ke terms me focal length ka relation
f = \frac{ma}{(1+m)^2}
📌 Ye question Board exams me baar-baar repeat hota hai
📌 1–2 marks proof ke liye must-learn concept
Is video me aap seekhenge:
✔️ Lens formula ka correct use
✔️ Condition for real image on screen
✔️ Short & easy derivation (exam-friendly)
✔️ Common mistakes jo students karte hain ❌
💡 PK Sir ka smart explanation – bina ratta, full clarity ke saath 😎
🔔 Like 👍 | Share 🔁 | Subscribe 🔴
💬 Comment karo: “4f condition clear ho gayi”
#physics #cbse #education #neetexam #neetpreparation #jeemains #mechanic #neet #physicsfun #workenergy
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