Why can you solve system of lenses combining the effects?

In summary, when solving a system of lenses, it is correct to work as if each lens is the only one present. This is because the path of the rays changes when the image from the first lens is used as the object for the second lens. Even if the first image is virtual and the second is real, the combined system still operates on the image from the first lens.
  • #1
physics user1
In solving a system of lenses you have to work like the second lens doesn't exist and then use the image formed by the first lens and work like the first doesn't exist, how can i demonstrate that doing so is correct?
Why is that correct?
The path that the rays make is different as is is if the rays were coming from the image formed from the first lens...
Whst is the first image was virtual, and the second happened to be real, how is this possible?
 
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  • #2
If I understand your question correctly, the image from the first lens is not really "virtual". It really is the image that is projected onto the second lens of a combined system. So the result of the combined system is the result of the second lens operating on the image from the first lens.
 

Related to Why can you solve system of lenses combining the effects?

1. Why is it important to be able to solve a system of lenses?

Being able to solve a system of lenses is important because it allows us to accurately predict the behavior of light as it passes through multiple lenses. This is essential in designing and understanding the function of complex optical systems, such as cameras, telescopes, and microscopes.

2. How do you solve a system of lenses?

To solve a system of lenses, we use the thin lens equation and the lensmaker's equation. These equations take into account the focal length, object distance, and image distance of each individual lens in the system. By combining these equations, we can determine the overall magnification and location of the final image.

3. Can a system of lenses produce a magnification greater than 1?

Yes, a system of lenses can produce a magnification greater than 1. This is known as a magnifying system, where the final image appears larger than the original object. This is commonly seen in magnifying glasses and microscopes.

4. Are there any limitations to solving a system of lenses?

While the thin lens equation and lensmaker's equation are useful tools for solving a system of lenses, they have their limitations. They assume that the lenses are thin and that light rays passing through them do not deviate from their original path. As a result, these equations may not be accurate for more complex lens systems or for light passing through materials with varying refractive indices.

5. How does the number of lenses in a system affect the final image?

The number of lenses in a system can greatly affect the final image. Each lens adds its own distortions and aberrations, which can accumulate and result in a distorted or blurry image. Additionally, adding more lenses can also increase the complexity of the system and make it more difficult to accurately solve for the final image location and magnification.

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