SHM vs Periodic vs Non-Periodic Motion | NCERT Oscillations Ex 14.4 | JEE NEET скачать в хорошем качестве

SHM vs Periodic vs Non-Periodic Motion | NCERT Oscillations Ex 14.4 | JEE NEET

How do you decide whether a motion is SHM, periodic but not SHM, or non-periodic? NCERT Class 11 Oscillations Exercise 14.4 gives the exact rule. This video builds a clear decision method required for JEE & NEET. NCERT Class 11 Physics | Oscillations — Exercise 14.4 This question teaches the MOST IMPORTANT classification rule of oscillatory motion. Based on the displacement equation, we learn: 1️⃣ When is motion Simple Harmonic (SHM)? ✔ Displacement is a single sine or cosine function ✔ Only one fixed frequency ✔ Acceleration ∝ displacement 2️⃣ When is motion Periodic but NOT SHM? ✔ Motion repeats after a fixed time ✔ Displacement is NOT a single sine/cosine ✔ Examples include: • Powers of sine/cosine • Sum of multiple harmonics 3️⃣ When is motion Non-periodic? ❌ Motion never repeats ❌ No fixed time period ✔ Examples: • Exponential growth/decay • Polynomial functions of time Key ideas explained clearly: ✔ Why repetition alone does not mean SHM ✔ Why exponential and polynomial motions are non-periodic ✔ How to classify motion directly from the equation ✔ Common JEE/NEET traps students fall into This is a must-watch video for: • JEE Main & Advanced • NEET Physics • NCERT concept clarity