Waves - Light

Waves - Light

By Yohanes Teacher

Refraction is a change in the travelling direction of a wave as it propagates in the different medium

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​Refraction of Light

​In the refraction, the wavelength of the wave is proportional to the density of the medium.

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The denser the medium the shorter the wavelength

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Remember, Frequency will never be affected in any case of refraction​

Since the wavelength is proportional to the density of the wave, the speed of the wave will be affected too.

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Recall the speed of wave equation

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​Speed = Wavelength x frequency

• Total internal reflection occurs when in the incidence angle is greater than the critical angle

• ​The wave should also travel

• ​Duplicate this text as many times as you would like.

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Total internal Reflection