Wave Equation

This module explains the core wave equation $v = f\lambda$, derives it from first principles, shows how to apply it to CIE exam problems, and clarifies co…

📖Study Guide

In-depth bilingual notes with worked past paper examples.

✍️Practice Exam

Original questions for this topic: MCQ + FRQ + Application + drag/match.

🎴Flashcards

20+ flashcards: definitions / formulas / pitfalls. Click to flip.

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How this topic is distributed across past papers — data that shows what matters.

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