How to find the focal length of a lens (Problem with a task)

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SUMMARY

The discussion centers on calculating the focal length of a lens using the Lensmaker's Equation. The user seeks formulas that incorporate the refractive indices of two lens centers and the radii of curvature of the spherical surfaces. The Lensmaker's Equation is essential for determining the focal length based on these parameters. The reference to the Wikipedia page on the Lensmaker's Equation provides a comprehensive source for understanding the necessary calculations.

PREREQUISITES
  • Understanding of the Lensmaker's Equation
  • Knowledge of refractive indices
  • Familiarity with spherical surfaces and their radii of curvature
  • Basic principles of optics
NEXT STEPS
  • Study the derivation and applications of the Lensmaker's Equation
  • Explore examples of calculating focal lengths with varying refractive indices
  • Investigate the impact of different radii of curvature on lens performance
  • Learn about optical design software for simulating lens behavior
USEFUL FOR

Students of optics, optical engineers, and anyone involved in lens design or analysis will benefit from this discussion.

Sajo
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Homework Statement
Determine the optical power of a biconvex lens, with a radius of curvature of both spherical surfaces of 20 cm each, which is made of glass with a refractive index of 1.83 in water. The refractive index for water is 1.33
Relevant Equations
Optical power=1/focal length of lens
Hello. I need formulas for the focal length of a lens when I have refractive indices of two centers and two radii of curvature of spherical surfaces or one radius of curvature of spherical surfaces. I search the internet but can't find it.
 
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