HTET PGT Physics 2026 | Ray Optics (Class-2): Refraction of Light & TIR | Complete Concepts & PYQs

HTET PGT Physics 2026 | Ray Optics (Class-2): Refraction of Light & TIR ​Welcome to Class-2 of our comprehensive HTET PGT Physics 2026 preparation series! In this session, we cover the core concepts of Refraction of Light and Total Internal Reflection (TIR), focusing on exam-oriented theory, key derivations, and previous years' questions (PYQs). ​📌 Topics Covered in This Class: ​Introduction & Laws of Refraction: Snell's Law and Refractive Index ​Refraction Through a Rectangular Glass Slab: Path of light, lateral shift/displacement & formula derivation ​Real Depth and Apparent Depth of a Tank: Apparent shift, normal shift, and key numerical formulas ​Total Internal Reflection (TIR): Critical angle conditions and relations ​ ​HTET Exam Practice: Important PYQs and conceptual numericals ​#HTETPGTPhysics #HTET2026 #RayOptics #RefractionOfLight #LateralShift #ApparentDepth #TotalInternalReflection #PGTPhysicsPreparation #PhysicsClasses