Reflection and Refraction (VCE SSCE Physics): Flashcards

Wave changes direction at surface, returns to same medium

Angle of incidence = angle of reflection (from normal)

Wave bends entering new medium due to speed change

$n = \frac{c}{v}$ (c=vacuum speed, v=medium speed)

$n_1 \sin \theta_1 = n_2 \sin \theta_2$

$\sin \theta_c = \frac{n_2}{n_1}$ where $n_1 > n_2$

Bends toward the normal

High to low n, angle ≥ critical angle

$c = 3.00 \times 10^8$ m/s

Frequency