Focal Length Calculation for a Converging Meniscus Lens

In summary, a converging meniscus lens is a type of lens with a convex and concave surface that causes light rays to converge, allowing it to focus light at a specific point. It works by bending and refracting light rays, and is commonly used in various optical instruments and laser systems. This lens is different from other lenses in its shape and curvature, and its performance can be affected by factors such as surface curvature, material, and imperfections.
  • #1
Punkyc7
420
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A converging meniscus lens has an index of refraction of 1.55 and radii of curvature for its surfaces of 6.00 cm and 11.0 cm. The concave surface is placed upward and filled with carbon tetrachloride which has n = 1.46. What is the focal length of the glass combination?

So I tried using the lens makers equation and got
1/f=((1.55/.146)-1)(1/6-1/11)
took the inverse and got 214 cm, which is wrong, so I am wondering were I went wrong at.
 
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  • #2
Punkyc7 said:
radii of curvature for its surfaces of 6.00 cm and 11.0 cm.

What?
 

Related to Focal Length Calculation for a Converging Meniscus Lens

1. What is a converging meniscus lens?

A converging meniscus lens is a type of lens that has a convex surface on one side and a concave surface on the other. It is curved in such a way that it causes light rays to converge or come together at a single point, thereby focusing the light.

2. How does a converging meniscus lens work?

A converging meniscus lens works by using the curvature of its surfaces to bend and refract light rays. The convex surface of the lens causes light rays to bend towards the center of the lens, while the concave surface causes the light rays to bend away from the center. This bending of light rays allows the lens to focus the light at a specific point.

3. What are the applications of a converging meniscus lens?

Converging meniscus lenses have various applications in optics and imaging systems. They are commonly used in cameras, telescopes, microscopes, and other optical instruments to focus and magnify light. They are also used in laser systems to shape and focus laser beams.

4. How is a converging meniscus lens different from other lenses?

A converging meniscus lens is different from other lenses in its shape and curvature. It has a convex-concave shape, whereas other lenses may have a convex-convex, concave-concave, or plano-convex shape. Additionally, the curvature of a converging meniscus lens is asymmetric, causing it to have different focal lengths along different axes.

5. What factors affect the performance of a converging meniscus lens?

The performance of a converging meniscus lens is affected by several factors, including the curvature of its surfaces, the refractive index of the material it is made of, and the thickness of the lens. The angle of incidence of light rays and the wavelength of light also play a role in the lens's performance. Additionally, any imperfections in the lens's surface or material can affect its performance.

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