Snell’s Law & Index of Refraction Practice Problems – Physics

This physics video tutorial provides a basic introduction into snell’s law which shows the relationship between the angle of incidence and the angle of refraction given the index of refraction of the two materials. This video explains how to calculate the speed of light of water given the index of refraction of water or how to calculate the index of refraction of diamond given the speed of light in diamond. It mentions how to calculate the wavelength of light in glass given the wavelength of light in a vacuum. This video on geometric optics contain plenty of examples and practice problems. As light moves from a material with a low index of refraction to a material with a high index of refraction, the light ray bends toward the normal line.

Law of Reflection – Geometric Optics:

The Mirror Equation:

Refraction of Light:

Snell’s Law & Index of Refraction:

Total Internal Reflection & Critical Angle:

Thin Lens Equation:

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Ray Diagrams:

The Huygens Principle:

Young’s Double Slit Experiment:

Single Slit Diffraction:

Diffraction Grating Problems:

Polarization of Light Problems:

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