Marathon Revision | All Important Derivations | Class 12 Physics | Semester-4 | WBCHSE
Автор: bongfiziks
Загружено: 2026-01-31
Просмотров: 832
Описание:
In this special Marathon Revision session, we cover all the most important derivations from the Semester-4 Physics syllabus in one place.
This video is designed for last-minute board exam preparation, helping students revise formulas, logic, and writing patterns quickly.
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🔍 Derivations Covered in This Video:
✔ Young’s Double Slit Experiment – Fringe Width
✔ Reflection & Refraction at Plane Surface
✔ Lens Formula & Magnification
✔ Dual Nature – de Broglie Wavelength
✔ Photoelectric Effect Equation
✔ Bohr’s Atomic Model (Radius & Energy)
✔ Nuclear Binding Energy
✔ Semiconductor Energy Band Concept
✔ PN Junction Diode characteristics
✔ Transistor current relations
🎯 Best For:
👉 WBCHSE Class 12 Semester-4 students
👉 Last-week board exam revision
👉 Students who forget derivation steps
👉 Quick formula & concept recall
👨🏫 Teacher: Prasenjit Sir
📚 Channels: BongFiziks | Prasenjit Sir Physics
📌 Like 👍 | Share 🔁 | Subscribe 🔔 for more Semester-4 Revision Videos
#PhysicsDerivation #MarathonRevision #Class12Physics #WBCHSE #Semester4 #BoardExamPreparation #BongFiziks #PrasenjitSirPhysics
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![Physics Final Suggestion for Class-12 [Sem-4] | Physics Full Book Marathon Class-12 | Somenath Sir](https://image.4k-video.ru/id-video/8imZvOO92Hg)
