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Présentation Einstein

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Created on November 17, 2024

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Transcript

Snell-Descartes Law

Summary

Snell-Descartes law, also known as Snell's law, is a fundamental principle in optics that describes how light bends (refracts) when it passes from one medium to another. It is named after the Dutch mathematician Willebrord Snellius and the French philosopher René Descartes.

Timeline

1621
1637
984 CE

Importance in Optics

Explanation

Mathematical expression

n₁ × sin(θ₁) = n₂ × sin(θ₂)
  • n₁ and n₂: the refractive indices
  • θ₁ is the angle of incidence
  • θ₂ is the angle of refraction,

Phenomenom of total intern reflexion

sin(θ_c) = n₂ / n₁
  • n₁ and n₂: the refractive indices
  • θ_c is the critical angle
  • n₁ < n₂

applications of snell-descartes law

applications of snell-descartes law

Photography

Tellecommunication

Seismology

Ophthalmology

Limitations and Considerations

Limitations of snell-descartes law

Total Internal Reflection

Ideal Conditions

Wave-Particle Duality

No Consideration for Dispersion

Conclusion

“Snell’s Law reflects the harmony of nature’s design in guiding light’s path.”

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