<h2>Simple Harmonic Motion and Waves</h2>
<p>Complete chapter notes prepared according to the 2026 syllabus. Every concept is explained in simple language with solved examples, short questions, and long questions as asked in board exams.</p>
<h3>Key Topics Covered</h3>
<ul><li>Simple harmonic motion — conditions and examples</li><li>Damped and forced oscillations, resonance</li><li>Wave motion — transverse and longitudinal waves</li><li>Sound waves, intensity, echo and acoustics</li><li>Solved numericals from all board papers</li></ul>
<h3>How to Use These Notes</h3>
<p>Read each section once, then attempt the exercise questions given at the end. Mark the topics that carry the most marks (see pairing scheme) and revise them daily in the last week before the exam.</p>