BCHET-147 | IR Spectroscopy Principle & Theory | Part-4 | IGNOU Guess Paper

In this video we have covered complete IR Spectroscopy Principle and Theory from BCHET-147 Unit-5. This is Part-4 of our BCHET-147 Guess Paper Series. If you are preparing for IGNOU Term-End Exam, this video will help you understand IR Spectroscopy in simple language with all important exam points. 📌 What you will learn in this video: What is IR Spectroscopy? Definition & Basic Concept Principle of IR Spectroscopy - E = hν and E = hc/λ Condition for IR Absorption - Change in Dipole Moment Hooke's Law Formula: ν̅ = 1/2πc √(k/μ) Mid-IR Region 4000-400 cm⁻¹ Types of Molecular Vibrations in detail Stretching Vibrations - Symmetric & Asymmetric Stretching Bending Vibrations - Scissoring, Rocking, Wagging, Twisting Exam-oriented key points and simple 3-step principle If this video helped you, please LIKE, SHARE and SUBSCRIBE to IGNOU QUERY HUB for all IGNOU BCHET, MCHET and other course guess papers and important questions. #IGNOU #BCHET147 #IRSpectroscopy #IGNOUGUESS Paper #BCHET147GuessPaper #IRPrinciple #IGNOUChemistry #BSCG #IGNOUExam #MolecularVibrations #StretchingBending