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Snell’s law — UPSC CSE 2006 Physics PYQ
Buy PYQ Solution Manual →Derive Snell's law of refraction from fermat's principle. How is the refractive index related to the velocity of light ? Light of wavelength 600 nanometre (in vacuum) enters a glass slab of refractive index 1.5. What are the values of wavelength, frequency and velocity of light in glass ? [Velocity of light in vacuum = 3 \times 10^8\text{ ms}^{-1}]
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