- A Wave Rule #2 states that when a wave passes from one medium to another
medium the frequency remains the same. The frequency is unchanged, but
because the speed of light in diamond is less than in air, the wavelength of
the light in diamond is shorter than its wavelength in air. - A If the speed of light is less in medium 2 than in medium 1, then medium 2
must have the higher index of refraction; that is, n 2 > n 1. Snell’s law then
implies that θ 2 < θ 1 : The beam will refract toward the normal upon
transmission into medium 2. - A The critical angle for total internal reflection is computed as follows:
marvins-underground-k-12
(Marvins-Underground-K-12)
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