Lens Maker's Formula
About the Lecture
The lecture Lens Maker's Formula by Jared Rovny, PhD is from the course Geometrical Optics.
Included Quiz Questions
What is the focal length of a convex lens that is made of glass and has a radius of curvature of 10 cm on both sides? Note: index of refraction of glass is approximately 1.5 and the medium of the lens is air.
- 10 cm
- 5 cm
- 20 cm
- Near infinity
- 15 cm
What variables does the focal length f of a lens depend on?
- Radius r₁ and r₂ of the curvatures of the lens on both sides, index of refraction of the material the lens is made of, index of refraction of the medium which the lens is immersed in
- Radius r₁ and r₂ of the curvatures of lens on both sides, the intensity of the light that passes through the lens
- Radius r₁ and r₂ of the curvatures of lens on both sides, index of refraction of the material the lens is made of
- Index of refraction of the material the lens is made of, index of refraction of the medium which the lens is immersed in
- Radius r₁ and r₂ of the curvatures of lens on both sides, index of refraction of the material the lens is made of, the intensity of the light that passes through the lens
What is the effect of a glass lens immersed in a liquid of the same refractive index?
- The light will not change or bend as it passes through the lens.
- The light will treat the lens exactly as if it were in the air.
- The light will bend slightly more than usual.
- The light will bend slightly less than usual.
- It will depend on the width of the lens.
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Author of lecture Lens Maker's Formula
Jared Rovny, PhD
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