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Navy OAR Exam Prep 58, Waves Sound Light and Basic Optics
Published 1 week, 3 days ago
Description
This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.
In this episode you will learn:
- That frequency and wavelength are inversely proportional when wave speed is constant, a key concept for proportional reasoning questions.
- Why sound travels fastest through solids like steel, not air or water—a frequently tested exam trap.
- The law of reflection states that the angle of incidence always equals the angle of reflection, measured from the normal.
- How to solve refraction problems, such as spearfishing, by aiming below the object's apparent position due to light bending.
- A mnemonic to remember that convex lenses and concave mirrors are converging systems that focus light.
For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep