1.6 Huygens’s Principle

Every point on a wavefront treated as a source of spherical wavelets, then reflection, refraction, and diffraction rebuilt from that one construction.

University Physics Volume 3, 1.6 Huygens’s Principle

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2 exercises

1.6 Exercise 1

In the example, we had $n_{1} < n_{2}$ . If $n_{2}$ were decreased such that $n_{1} > n_{2}$ and the speed of light in medium 2 is faster than in medium 1, what would happen to the length of $A A ′$ ? What would happen to the wave front $A ′ B ′$ and the direction of the refracted ray?

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1.6 Exercise 3

Does Huygens’s principle apply to all types of waves?

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