IB Physics Topic 4.4 (Part 1): Wave Behaviour - Reflection & Refraction

The video begins with an explanation of how regular and electromagnetic waves interact with matter to cause reflection and refraction. It then dives into reflection, both perfect and diffuse with light and sound waves, consolidating the material with an example question. It then moves on to explain refraction, both in denser and rarer media. This is related to Snell’s law, with an example question, and how a wave incident at a critical angle undergoes total internal reflection, with an example question. Lastly, Brewster’s law is introduced as an alternative method of polarisation, with an example question.

00:00 Introduction
00:25 Wavefront behaviour
00:49 Wave absorption
01:26 Reflection
02:47 Perfect reflection
03:14 Example question
04:02 Refraction
04:42 Effect of second medium
05:29 Refractive index
05:32 Preview finished!

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